Advanced Auto Fabrication for BMW 3 Series E46 (1999-2005)

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BMW E46 M54 AAF Low Temp Thermostat Kit - Partial
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Advanced Auto Fabrication - Corporate Logo
T#:7624632
Part#: 116211.2
In Stock at Vendor
$ 85.00 USD
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$ 85.00 USD
Free Shipping

BMW E46 M54 AAF Low Temp Thermostat Kit - Partial is an essential upgrade for enthusiasts looking to optimize engine performance and reliability. Developed by Advanced Auto Fabrication (AAF), this kit addresses the limitations of the factory M54 thermostat, which maintains a temperature range of 80-103°C and opens the mechanical failsafe at 110°C. For race conditions where maintaining a lower temperature is crucial, this kit replaces the stock electronic thermostat with a manual unit, allowing the engine to run at a safer and more efficient temperature. This upgrade not only enhances engine longevity but also reduces stress from high-temperature operation, minimizes heat soak, and increases power.

  • Optimal Temperature Control: Replaces the factory thermostat for improved engine temperature management.
  • Enhanced Engine Longevity: Operates at safer temperatures, reducing stress and extending engine life.
  • Increased Power: Lower operating temperatures can lead to better engine performance.
  • Reduced Heat Soak: Helps prevent overheating and ensures efficient cooling.
  • Improved Reliability: Manual thermostat unit offers more consistent performance in racing conditions.

Partial Kit Contents:

  • Thermostat housing plate
  • Thermostat
  • Installation hardware
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AAF Transmission Crossmembers 5-Speed - E46 Non-M
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Fits ZF and Getrag Transmissions. Non-M models Only
Advanced Auto Fabrication - Corporate Logo
T#:7608860
Part#: 116110
In Stock at Vendor
$ 190.00 USD
Free Shipping
$ 190.00 USD
Free Shipping
Since 2010, Advanced Auto Fabrication has been producing and developing both parts and full fledged race cars. Their knowledge base covers a wide range of vehicles both domestic and imported. In the specific case of BMW, the team at AAF has a particular affinity for building and designing components for BMW race cars. Ideal for the SE46 racing series, the AAF E46 5-speed Transmission Crossmember is a heavy-duty and worthwhile upgrade. The OEM thin cast aluminum cross member has been known to fail in multiple different ways. When using stiff engine and transmission mounts, the cross member can crack out and break around these mounting points. The cross member can also break from the high amounts of load transferred through the drive train. While chassis flex from hard cornering is being applied through the engine and transmission from the front cross member, this load is sent from the transmission back into the chassis at the transmission cross member. This is simply too much stress for the OEM cross member to hold up to under the extreme punishment of road racing. The AAF E46 Transmission Cross Member is completely constructed of 1/4' thick heavy-duty aluminum plate. It is designed specifically to cope with hours of endurance racing.
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AAF HVAC Firewall Block Off Plate - E46
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Advanced Auto Fabrication - Corporate Logo
T#:7608841
Part#: 11647
Ships in 1 Business Day
$ 40.99 USD
Free Shipping on orders $49 and up
Since 2010, Advanced Auto Fabrication has been producing and developing both parts and full fledged race cars. Their knowledge base covers a wide range of vehicles both domestic and imported. In the specific case of BMW, the team at AAF has a particular affinity for building and designing components for BMW race cars. AAF's own Heater Block Off Plate for E46 models. Stock heater boxes are often not needed on race cars, and this block off plate is a lightweight and stylish replacement. It is recommended to use silicone on the sealing surface to keep all engine fumes outside the cabin. Hardware included.
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BMW E46 AAF Aluminum Radiator Mounting Kit
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Advanced Auto Fabrication - Corporate Logo
T#:7608839
Part#: 11641
In Stock at Vendor
$ 189.00 USD
Free Shipping on orders $49 and up

BMW E46 AAF Aluminum Radiator Mounting Kit provides a robust solution for mounting an aluminum radiator into the BMW E46 chassis without relying on the stock plastic mounts. Developed by Advanced Auto Fabrication, a company renowned for their expertise in producing high-performance race car components, this kit reflects their extensive knowledge and dedication to BMW race car design.

The mounting kit is designed to replace the stock mounting system and is compatible with lightweight aftermarket fans, as the stock electric fan cannot be used. Please note that this kit does not fit M3 models.

  • Durable Construction: Made from high-quality aluminum for strength and longevity.
  • Enhanced Cooling Efficiency: Allows for the use of aftermarket fans for improved cooling performance.
  • Race-Ready Design: Reflects Advanced Auto Fabrication's expertise in BMW race car components.
  • No Stock Plastic Mounts: Provides a more reliable and robust mounting solution than the factory system.
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AAF Low Temp Thermostat Kit - Full Kit - E46
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Advanced Auto Fabrication - Corporate Logo
T#:7624630
Part#: 116211
In Stock at Vendor
$ 175.00 USD
Free Shipping
$ 175.00 USD
Free Shipping
Since 2010, Advanced Auto Fabrication has been producing and developing both parts and full fledged race cars. Their knowledge base covers a wide range of vehicles both domestic and imported. In the specific case of BMW, the team at AAF has a particular affinity for building and designing components for BMW race cars. The factory M54 thermostat is electronically controlled to keep the engine running between 80-103°C, whereas race cars like to maintain 80°C or less for maximum power. Additionally, the mechanical failsafe doesn’t open up until the coolant temperature reaches 110°C, or 230°F, which is about the point when most race cars are turned off and parked which is no good for the motor! The AAF E46 M54 Low Temp Thermostat Kit is designed to give the control of proper engine operating temperature back by replacing the stock electronic thermostat with a manual unit. This allows the engine to run at the proper, and much safer, operating temperature, improving engine longevity, reduces stress from high-temp. operation, reduces heat soak, and increases power! Full Kit Contents: Thermostat housing Thermostat housing plate Thermostat install hardware sealant
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AAF M54 Breather Catch Can
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Advanced Auto Fabrication - Corporate Logo
T#:7608871
Part#: 116120
Ships in 2 Business Days
$ 195.99 USD
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$ 195.99 USD
Free Shipping
Since 2010, Advanced Auto Fabrication has been producing and developing both parts and full fledged race cars. Their knowledge base covers a wide range of vehicles both domestic and imported. In the specific case of BMW, the team at AAF has a particular affinity for building and designing components for BMW race cars. When you’re racing with an M54 and you want to control oil burn, installing an external catch tank is a great way to do it. The stock oil separator allows oil into the intake at sustained high RPM. This causes the intake runners, piping, and throttle body to be contaminated with oil and carbon build up. Excessive carbon build-up on valves, piston crowns, combustion chambers and spark plugs. This also increases the chance of detonation and power loss. Includes all hardware and parts to make installation easy!
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AAF Brake Backing Plates - E46 M3
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Advanced Auto Fabrication - Corporate Logo
T#:7608851
Part#: 116102.2
Ships in 3 Business Days
$ 175.00 USD
Free Shipping on orders $49 and up
Since 2010, Advanced Auto Fabrication has been producing and developing both parts and full fledged race cars. Their knowledge base covers a wide range of vehicles both domestic and imported. In the specific case of BMW, the team at AAF has a particular affinity for building and designing components for BMW race cars. These Backing Plates by Advanced Auto Fabrication feature a large “Pocket” to allow for more efficient air flow into the brake hat. This allows air to travel through the vents in the rotor. AAF's Backing Plate is the full size of the rotor and is a heat shield for the shocks and ball joints. Heating of your shock oil causes oil thinning, which changes the shock dampening characteristics. Protecting your ball joints from heat will improve longevity and prevent premature wear. The backing plates are powder coated black for extra durability and attractive aesthetics. They replace the OEM dust shields, and will need to be removed before installation.
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AAF Eye-Bolt Anchor Plate Kit
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Advanced Auto Fabrication - Corporate Logo
T#:7608880
Part#: 116206
Ships in 1 Business Day
$ 25.99 USD
Free Shipping on orders $49 and up
Since 2010, Advanced Auto Fabrication has been producing and developing both parts and full fledged race cars. Their knowledge base covers a wide range of vehicles both domestic and imported. In the specific case of BMW, the team at AAF has a particular affinity for building and designing components for BMW race cars. AAF offers safety harness Seat Belt Anchors (eye-bolt and anchor plate) to help ease the installation of your safety belt. This eyebolt, and anchor plate(washer/nut) kit is made of premium quality steel to fit your car for safety. When it comes to quality hardware for mounting your seat belts, AAF has the racing harness components you need. Never take a chance when it comes to safety!
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AAF E46 Radiator Fan Shroud
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Advanced Auto Fabrication - Corporate Logo
T#:7624641
Part#: 116251
In Stock at Vendor
$ 140.00 USD
$ 140.00 USD
Since 2010, Advanced Auto Fabrication has been producing and developing both parts and full fledged race cars. Their knowledge base covers a wide range of vehicles both domestic and imported. In the specific case of BMW, the team at AAF has a particular affinity for building and designing components for BMW race cars. AAF has created a light-weight fan shroud for your E46 race car. Equipped with 7 flaps to let as much air through as possible at speed and fits a 14' fan. Seamlessly attaches to the AAF Radiator Mounts. The shroud creates a vacuum to expand the fan’s ability to pull from the entire surface area of the radiator. This creates cooler temps under the hood with the benefit of 7 flaps that allow the most air to pass through. **AAF states fitment has only been thoroughly tested with their radiator mounts. No fitment info for the stock plastic mounts is available at this time. AAF has created a light-weight fan shroud for your E46 race car. Equipped with 7 flaps to let as much air through as possible at speed and fits a 14' fan. Seamlessly attaches to the AAF Radiator Mounts. The shroud creates a vacuum to expand the fan’s ability to pull from the entire surface area of the radiator. This creates cooler temps under the hood with the benefit of 7 flaps that allow the most air to pass through. **AAF states fitment has only been thoroughly tested with their radiator mounts. No fitment info for the stock plastic mounts is available at this time. *Does not include fan.
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AAF Vented Power Steering Cap Kit - Silver Reservoir
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Advanced Auto Fabrication - Corporate Logo
T#:7624658
Part#: 116253
Ships in 1 Business Day
$ 154.00 USD
Free Shipping
$ 154.00 USD
Free Shipping
Since 2010, Advanced Auto Fabrication has been producing and developing both parts and full fledged race cars. Their knowledge base covers a wide range of vehicles both domestic and imported. In the specific case of BMW, the team at AAF has a particular affinity for building and designing components for BMW race cars. Introducing the AAF billet power steering cap kit. This kit comes with everything you need to capture any excess fluid from your power steering system. It features a CNC billet 6061 aluminum cap, machined and built in-house at AAF. This provides a permanent solution that does not require tying anything over your reservoir for race day! This one-of-a-kind cap features a fitting at the top that allows connection to a small billet catch can for clean and safe capture of excess fluid. **Note: This kit was designed to work with solid race mounts. Clearance has not been confirmed with OEM mounts.
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AAF E46 Transmission Crossmembers - 6-Speed Non-M
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For use with solid front engine mounts only!
Advanced Auto Fabrication - Corporate Logo
T#:7624639
Part#: 116222
Ships in 3 Business Days
$ 190.00 USD
Free Shipping
$ 190.00 USD
Free Shipping
Since 2010, Advanced Auto Fabrication has been producing and developing both parts and full fledged race cars. Their knowledge base covers a wide range of vehicles both domestic and imported. In the specific case of BMW, the team at AAF has a particular affinity for building and designing components for BMW race cars. Ideal for the SE46 racing series, the AAF E46 6-speed Transmission Crossmember is a heavy-duty and worthwhile upgrade. The OEM thin cast aluminum cross member has been known to fail in multiple different ways. When using stiff engine and transmission mounts, the cross member can crack out and break around these mounting points. The cross member can also break from the high amounts of load transferred through the drive train. While chassis flex from hard cornering is being applied through the engine and transmission from the front cross member, this load is sent from the transmission back into the chassis at the transmission cross member. This is simply too much stress for the OEM cross member to hold up to under the extreme punishment of road racing. The AAF E46 Transmission Cross Member is completely constructed of 1/4' thick heavy-duty aluminum plate. It is designed specifically to cope with hours of endurance racing.
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AAF Spec E46 Drivers Side Floor Plate
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Advanced Auto Fabrication - Corporate Logo
T#:7608875
Part#: 116193
In Stock at Vendor
$ 150.00 USD
Free Shipping on orders $49 and up
Since 2010, Advanced Auto Fabrication has been producing and developing both parts and full fledged race cars. Their knowledge base covers a wide range of vehicles both domestic and imported. In the specific case of BMW, the team at AAF has a particular affinity for building and designing components for BMW race cars. AAF's E46 Floor Pan is made and manufactured by Advanced Auto Fabrication from quality materials. With the absence of the factory carpet in a race car, the drivers feet rest in a position that is too low and far away which is uncomfortable during long race days. This floor pan minimizes the amount of motion needed for driver inputs and pairs well with AAF's E46 dead pedal. Features: Includes grip tape to add as desired Hardware for dead pedal and floor pan plate install Some modification will be required based on cage and/or interior.
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AAF Brake Cooling Duct Kit w/Screened Ducts - E46 - Non-M
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For Non-M Models
Advanced Auto Fabrication - Corporate Logo
T#:7608847
Part#: 11674.3
Ships in 3 Business Days
$ 480.00 USD
Free Shipping
$ 480.00 USD
Free Shipping
Since 2010, Advanced Auto Fabrication has been producing and developing both parts and full fledged race cars. Their knowledge base covers a wide range of vehicles both domestic and imported. In the specific case of BMW, the team at AAF has a particular affinity for building and designing components for BMW race cars. AAF is proud to introduce their redesigned AAF E46 (non-M) Brake Cooling Duct Kit! Features: Extremely Light Weight – Less than 4 lbs in total! Ultra-High Airflow Inlets Tight Turning Radius Easy and Quick To Install Inexpensive to Buy and Maintain Durable for Racing Conditions Designed strong and lightweight these brake duct inlets include a massive 4' inlet. Ultimately this aids in providing higher airspeed and pressure to the brake rotor and thus better brake cooling. Inlets are manufactured by AAF in-house with a 3D printer to provide a strong and inexpensive part. Brake duct tubes included in this kit are made from lightweight and strong ABS plastic. Shaped for optimized airflow, these tubes also provide the ability for a tight turning radius even with large racing tires. Per AAF: for a SPEC E46 with the spec 255 Toyo tire, you can turn 1.5 turns from straight without hitting the tubes, which is more than enough for driving around the paddock. The tubes taper down to a 3' flex hose, to remain legal for SE46. Included in the kit are AAF's Brake Backing Plates as well. Kit Contents: Left and Right AAF 3D Printed screened inlets Left and Right 4' to 3' Molded Tubes Two 13' Sections of Flex Hose Left and Right AAF Backing Plates All Attaching Hardware and Hose Clamps
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AAF Brake Cooling Duct Kit - E46 Non-M
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For Non-M Models
Advanced Auto Fabrication - Corporate Logo
T#:7608846
Part#: 11674
Ships in 3 Business Days
$ 450.00 USD
Free Shipping
$ 450.00 USD
Free Shipping
Since 2010, Advanced Auto Fabrication has been producing and developing both parts and full fledged race cars. Their knowledge base covers a wide range of vehicles both domestic and imported. In the specific case of BMW, the team at AAF has a particular affinity for building and designing components for BMW race cars. AAF is proud to introduce their redesigned AAF E46 (non-M) Brake Cooling Duct Kit! Features: Extremely Light Weight – Less than 4 lbs in total! Ultra-High Airflow Inlets Tight Turning Radius Easy and Quick To Install Inexpensive to Buy and Maintain Durable for Racing Conditions Designed strong and lightweight these brake duct inlets include a massive 4' inlet. Ultimately this aids in providing higher airspeed and pressure to the brake rotor and thus better brake cooling. Inlets are manufactured by AAF in-house with a 3D printer to provide a strong and inexpensive part. Brake duct tubes included in this kit are made from lightweight and strong ABS plastic. Shaped for optimized airflow, these tubes also provide the ability for a tight turning radius even with large racing tires. Per AAF: for a SPEC E46 with the spec 255 Toyo tire, you can turn 1.5 turns from straight without hitting the tubes, which is more than enough for driving around the paddock. The tubes taper down to a 3' flex hose, to remain legal for SE46. Included in the kit are AAF's Brake Backing Plates as well. Kit Contents: Left and Right AAF 3D Printed Massive 4' Inlets Left and Right 4' to 3' Molded Tubes Two 13' Sections of Flex Hose Left and Right AAF Backing Plates All Attaching Hardware and Hose Clamps
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AAF Aluminum Mesh Center Bumper Grill - E46
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Advanced Auto Fabrication - Corporate Logo
T#:7608873
Part#: 116178
Ships in 3 Business Days
$ 86.99 USD
Free Shipping on orders $49 and up
Since 2010, Advanced Auto Fabrication has been producing and developing both parts and full fledged race cars. Their knowledge base covers a wide range of vehicles both domestic and imported. In the specific case of BMW, the team at AAF has a particular affinity for building and designing components for BMW race cars. The factory bumpers have a cheap plastic mesh do very little to protect the radiator. AAF's E46 Alum Mesh Grill will give you leaps and bounds more protection against rocks and any other debris on the racetrack that can cause a punctured radiator. The aluminum mesh is lightweight and resilient. This part installs in minutes, and is one of the easiest and important upgrades you can do to your E46 race car. Kit comes with all hardware needed to secure this mesh to your front bumper.
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AAF Brake Backing Plates - E46 Non-M
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For vehicles with OEM 330i sized brakes
Advanced Auto Fabrication - Corporate Logo
T#:7608848
Part#: 11675
Ships in 3 Business Days
$ 175.00 USD
Free Shipping on orders $49 and up
Since 2010, Advanced Auto Fabrication has been producing and developing both parts and full fledged race cars. Their knowledge base covers a wide range of vehicles both domestic and imported. In the specific case of BMW, the team at AAF has a particular affinity for building and designing components for BMW race cars. These Backing Plates by Advanced Auto Fabrication feature a large “Pocket” to allow for more efficient air flow into the brake hat. This allows air to travel through the vents in the rotor. AAF's Backing Plate is the full size of the rotor and is a heat shield for the shocks and ball joints. Heating of your shock oil causes oil thinning, which changes the shock dampening characteristics. Protecting your ball joints from heat will improve longevity and prevent premature wear. The backing plates are powder coated black for extra durability and attractive aesthetics. They replace the OEM dust shields, and will need to be removed before installation.
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AAF Race Shifter W/Adjustable Shift Shaft - E46 6-Speed
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For vehicles with 6-speed transmissions
Advanced Auto Fabrication - Corporate Logo
T#:7624620
Part#: 116147-6
Ships in 3 Business Days
$ 1,244.99 USD
Free Shipping on orders $49 and up
AAF Racing have been building race cars for more than 8 years and have been installing all types and brands of after market shifters. Using all of that knowledge, AAF has incorporated all of this into their new innovative design. AAF's BMW Race Shifter with Adjustable Shift Shaft has a very wide array of available adjustments allowing you the ability to tune it exactly to your liking. If you want to change something about the way it works, most likely there is an adjustment for it! Adjustable Features: Throw Ratio: The knob height must remain at the same height and position for obvious ergonomic reasons. This means in order to incorporate a throw ratio adjustment WITHOUT changing the position of the knob or the pivot point, the location of the shift shaft connection must move closer or farther from the pivot point. This is done in the lower section of the shift lever. Adjustable Shift Shaft Included: Included is the AAF Adjustable Shift Shaft as they believe this allows for optimal shifting. With an adjustable shift shaft, you are able to move the shift knob forwards or backwards, as well as left or right (closer or farther from the steering wheel). You can make all these changes without affecting the spring position of 3rd and 4th gears. The shift shaft has an adjustment range from 165mm to 245mm. Knob Height: The AAF Race Shifter is capable of a total knob height change of 50mm while still having 3 different options for throw ratio. There are two knob spacers included, a 25mm and 50mm. This allows you to thread the knob down tight and lock it into place. Spring Center: Coupled with the AAF Adjustable Shift Shaft, the position of where your AAF Shifter springs to center is totally adjustable. There are two screws per center locator that can be used when setting your center position, then the upper cap will be locked down to ensure your center preference position never moves out of adjustment. Spring Pressure: One of the most unique features of the AAF Race Shifter is the centering spring mechanism. Unlike most shifters that use a typical steel spring, the AAF Race Shifter uses a polyurethane spring. This polyurethane spring absorbs shock and vibration load that a typical steel spring would magnify and resonate. This gives the AAF Race Shifter a connected feel to the transmission that is unmatched. It features two polyurethane springs. This allows the adjustment of the centering location of each spring independently which gets rid of any slack but also allows for preloading of the spring. AAF also offers multiple different spring rates of polyurethane which are preloaded in house. Mounting and Installation: AAF's Race Shifter is centered directly over the factory shifter hole. This allows it to be to be installed in many BMW applications. All other information and installation details available on AAF's website!
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AAF Dead Pedal - E46
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Advanced Auto Fabrication - Corporate Logo
T#:7608874
Part#: 116192
In Stock at Vendor
$ 50.00 USD
Free Shipping on orders $49 and up
Since 2010, Advanced Auto Fabrication has been producing and developing both parts and full fledged race cars. Their knowledge base covers a wide range of vehicles both domestic and imported. In the specific case of BMW, the team at AAF has a particular affinity for building and designing components for BMW race cars. AAF's E46 Dead Pedal is made and manufactured by Advanced Auto Fabrication from quality materials. With the absence of the factory carpet in a race car, the drivers feet rest in a position that is too low and far away which is uncomfortable during long race days. This dead pedal minimizes the amount of motion needed for driver inputs and pairs well with AAF's E46 floor plate. Features: Includes grip tape to add as desired Hardware for dead pedal and floor pan plate install Some modification will be required based on cage and/or interior.
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AAF Oil Pan Baffle - E46 M54
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Advanced Auto Fabrication - Corporate Logo
T#:7608845
Part#: 11652
In Stock at Vendor
$ 155.00 USD
Free Shipping
$ 155.00 USD
Free Shipping
Since 2010, Advanced Auto Fabrication has been producing and developing both parts and full fledged race cars. Their knowledge base covers a wide range of vehicles both domestic and imported. In the specific case of BMW, the team at AAF has a particular affinity for building and designing components for BMW race cars. AAF's own M54 E46 Oil Pan Baffle. Under racing and track conditions, oil can move in the oil pan enough to cause extended moments of oil starvation. This can cause premature, and in some cases immediate, engine failure. This baffle keeps the oil at the pick up better than others on the market. This pan features a tight fit with an extra tab on the front to keep oil from exiting under braking. Six gated holes control oil slosh in the sump. A must have for all track cars. Features and Benefits Track-proven to prevent oil starvation Directional trap door baffling completely that closes off the oil pump pickup for maximum protection against oil starvation during turning or acceleration Baffle plate with drain-back slots help accelerate return of oil to the bottom of the sump while also preventing oil slosh and reducing oil consumption Reduces the risk of oil starvation when oil levels are low Works with the factory cast aluminum oil pan, which is considered a structural member of the engine block and is less prone to failure or leaking than aftermarket sheet metal pans Light-weight aluminum construction Made In the USA **Note: Requires welding to install. Photos of installed baffle for reference.
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AAF Brake Duct Kit - E46 M3
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For M3 Model Only
Advanced Auto Fabrication - Corporate Logo
T#:7608850
Part#: 116102
Ships in 3 Business Days
$ 450.00 USD
Free Shipping on orders $49 and up
Since 2010, Advanced Auto Fabrication has been producing and developing both parts and full fledged race cars. Their knowledge base covers a wide range of vehicles both domestic and imported. In the specific case of BMW, the team at AAF has a particular affinity for building and designing components for BMW race cars. AAF is proud to introduce their redesigned AAF E46 M3 Brake Cooling Duct Kit! Features: Extremely Light Weight – Less than 4 lbs in total! Ultra-High Airflow Inlets Tight Turning Radius Easy and Quick To Install Inexpensive to Buy and Maintain Durable for Racing Conditions Designed strong and lightweight these brake duct inlets include a massive 4' inlet. Ultimately this aids in providing higher airspeed and pressure to the brake rotor and thus better brake cooling. Inlets are manufactured by AAF in-house with a 3D printer to provide a strong and inexpensive part. Brake duct tubes included in this kit are made from lightweight and strong ABS plastic. Shaped for optimized airflow, these tubes also provide the ability for a tight turning radius even with large racing tires. Per AAF: for a SPEC E46 with the spec 255 Toyo tire, you can turn 1.5 turns from straight without hitting the tubes, which is more than enough for driving around the paddock. The tubes taper down to a 3' flex hose, to remain legal for SE46. Included in the kit are AAF's Brake Backing Plates as well. Kit Contents: Left and Right AAF 3D Printed Massive 4' Inlets Left and Right 4' to 3' Molded Tubes Two 13' Sections of Flex Hose Left and Right AAF Backing Plates All Attaching Hardware and Hose Clamps
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AAF E46 Transmission Crossmembers - 6-Speed M
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For M Models
Advanced Auto Fabrication - Corporate Logo
T#:7624640
Part#: 116223
Ships in 3 Business Days
$ 190.00 USD
Free Shipping
$ 190.00 USD
Free Shipping
Since 2010, Advanced Auto Fabrication has been producing and developing both parts and full fledged race cars. Their knowledge base covers a wide range of vehicles both domestic and imported. In the specific case of BMW, the team at AAF has a particular affinity for building and designing components for BMW race cars. Ideal for the SE46 racing series, the AAF E46 6-speed Transmission Crossmember is a heavy-duty and worthwhile upgrade. The OEM thin cast aluminum cross member has been known to fail in multiple different ways. When using stiff engine and transmission mounts, the cross member can crack out and break around these mounting points. The cross member can also break from the high amounts of load transferred through the drive train. While chassis flex from hard cornering is being applied through the engine and transmission from the front cross member, this load is sent from the transmission back into the chassis at the transmission cross member. This is simply too much stress for the OEM cross member to hold up to under the extreme punishment of road racing. The AAF E46 Transmission Cross Member is completely constructed of 1/4' thick heavy-duty aluminum plate. It is designed specifically to cope with hours of endurance racing.
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AAF Jump Post Relocation Bracket - E46
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Advanced Auto Fabrication - Corporate Logo
T#:7608844
Part#: 11648
Ships in 3 Business Days
$ 28.99 USD
Free Shipping on orders $49 and up
Since 2010, Advanced Auto Fabrication has been producing and developing both parts and full fledged race cars. Their knowledge base covers a wide range of vehicles both domestic and imported. In the specific case of BMW, the team at AAF has a particular affinity for building and designing components for BMW race cars. The AAF E46 Jump Post Relocation Bracket makes it easy to adjust camber/caster on your race car by getting the factory jump post out of the way! In race car applications, the desired camber and caster settings can cause the strut tops and shock adjusters to interfere with the factory jump post. This kit takes just a few minutes to install and makes using strut braces and adjusting camber plates just that much safer and faster.
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AAF Vented Power Steering Cap Kit - Blue Reservoir
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Advanced Auto Fabrication - Corporate Logo
T#:54530866
Part#: 116253-BLU
In Stock
New Item
$ 154.00

This product was last offered at the strikethrough price on
06-03-2026

$ 144.99 USD
Limited Qty Sale
Free Shipping on orders $49 and up
$ 154.00

This product was last offered at the strikethrough price on
06-03-2026

$ 144.99 USD
Limited Qty Sale
Free Shipping on orders $49 and up
Introducing the AAF billet power steering cap kit. This kit comes with everything you need to capture any excess fluid from your power steering system. It features a CNC billet 6061 aluminum cap, machined and built in-house at AAF. This provides a permanent solution that does not require tying anything over your reservoir for race day! This one-of-a-kind cap features a fitting at the top that allows connection to a small billet catch can for clean and safe capture of excess fluid.
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AAF Race Shifter w/Adjustable Shift Shaft - E46 5-Speed
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For vehicles with 5-speed transmissions
Advanced Auto Fabrication - Corporate Logo
T#:7608883
Part#: 116147
Ships in 3 Business Days
$ 1,245.00 USD
Free Shipping on orders $49 and up
AAF Racing have been building race cars for more than 8 years and have been installing all types and brands of after market shifters. Using all of that knowledge, AAF has incorporated all of this into their new innovative design. AAF's BMW Race Shifter with Adjustable Shift Shaft has a very wide array of available adjustments allowing you the ability to tune it exactly to your liking. If you want to change something about the way it works, most likely there is an adjustment for it! Adjustable Features: Throw Ratio: The knob height must remain at the same height and position for obvious ergonomic reasons. This means in order to incorporate a throw ratio adjustment WITHOUT changing the position of the knob or the pivot point, the location of the shift shaft connection must move closer or farther from the pivot point. This is done in the lower section of the shift lever. Adjustable Shift Shaft Included: Included is the AAF Adjustable Shift Shaft as they believe this allows for optimal shifting. With an adjustable shift shaft, you are able to move the shift knob forwards or backwards, as well as left or right (closer or farther from the steering wheel). You can make all these changes without affecting the spring position of 3rd and 4th gears. The shift shaft has an adjustment range from 165mm to 245mm. Knob Height: The AAF Race Shifter is capable of a total knob height change of 50mm while still having 3 different options for throw ratio. There are two knob spacers included, a 25mm and 50mm. This allows you to thread the knob down tight and lock it into place. Spring Center: Coupled with the AAF Adjustable Shift Shaft, the position of where your AAF Shifter springs to center is totally adjustable. There are two screws per center locator that can be used when setting your center position, then the upper cap will be locked down to ensure your center preference position never moves out of adjustment. Spring Pressure: One of the most unique features of the AAF Race Shifter is the centering spring mechanism. Unlike most shifters that use a typical steel spring, the AAF Race Shifter uses a polyurethane spring. This polyurethane spring absorbs shock and vibration load that a typical steel spring would magnify and resonate. This gives the AAF Race Shifter a connected feel to the transmission that is unmatched. It features two polyurethane springs. This allows the adjustment of the centering location of each spring independently which gets rid of any slack but also allows for preloading of the spring. AAF also offers multiple different spring rates of polyurethane which are preloaded in house. Mounting and Installation: AAF's Race Shifter is centered directly over the factory shifter hole. This allows it to be to be installed in many BMW applications. All other information and installation details available on AAF's website!
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AAF Steel Tie Downs(pair)
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Advanced Auto Fabrication - Corporate Logo
T#:7624657
Part#: 116127
Ships in 1 Business Day
$ 18.00 USD
Free Shipping on orders $49 and up
Since 2010, Advanced Auto Fabrication has been producing and developing both parts and full fledged race cars. Their knowledge base covers a wide range of vehicles both domestic and imported. In the specific case of BMW, the team at AAF has a particular affinity for building and designing components for BMW race cars. Steel car tie down loops are an easy way to add a strong tie down to you car. These tie down loops bolt right to your rear lower shock bolts or your front control arm rear mounts with just a longer bolt. Comes as a pair.
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AAF Oil Pan Baffle - E30 M5x
For E30 Vehicles with M50 Style pump and E34 Oil Pan
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Advanced Auto Fabrication - Corporate Logo
T#:7593106
Part#: 116182
Ships in 3 Business Days
$ 155.00 USD
Free Shipping on orders $49 and up
$ 155.00 USD
Free Shipping on orders $49 and up
Since 2010, Advanced Auto Fabrication has been producing and developing both parts and full fledged race cars. Their knowledge base covers a wide range of vehicles both domestic and imported. In the specific case of BMW, the team at AAF has a particular affinity for building and designing components for BMW race cars. This oil pan baffle by AAF keeps the oil at the pick up better than others on the market. Baffling the oil pan is extremely important. Under racing and track conditions, oil can move in the oil pan enough to cause extended moments of oil starvation. This can cause premature, and in some cases immediate, engine failure. The pan features a tight fit to keep oil from exiting under braking or cornering. A must have for all track cars.
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