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Karbonius Composites BMW Intake Parts

One thing drivers and cars have in common is the need for air. Induction systems provide a third of the critical necessities for engines to run, so giving your BMW the best way to breathe is paramount in engine performance. If you need to replace your filter, recharge your reusable pod filter, or upgrade your intake, turbos, or intercooler parts, everything can be found below. We have OEM replacements as well as aftermarket performance upgrades to keep your BMW pristine, powerful, and functioning at peak efficiency.

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Karbonius E46 M3 CSL (S54) Carbon Airbox - Gloss Finish
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T#:35019964
Part#: E46AD02-CF-2
Ships on Jul 27, 2026
$ 2,349.00 USD
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$ 2,349.00 USD
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The ultimate intake for the E46 M3, made from prepeg carbon fiber in the same weave as the Genuine airbox for a OE look. The Karbonius airbox also features carbon fiber intake trumpets in place of the factory's plastic trumps, and are finished to a ultra smooth finish for perfect airflow.

OPTIONAL ESS E46 M3 Alpha-N E-Flash ECU Tuning Software

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Karbonius CSL Carbon Snorkel - E46 M3 (S54) - Gloss
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T#:29931698
Part#: E46AD04-CF-2
Ships on Jun 26, 2026
$ 779.00 USD
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$ 779.00 USD
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Snorkel extension the allows ducting from CSL bumper to airbox, requires use of CSL style airbox and mounts like the factory flap unit.
CSL Air Box Race - S54
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T#:7164824
Part#: E46AD03
Ships on Jul 15, 2026
$ 2,249.00 USD
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$ 2,249.00 USD
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Intake system made 100% in prepreg carbon fiber in autoclave

Karbonius E46 M3 CSL (S54) Carbon Snorkel - Matte Finish
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T#:35727834
Part#: E46AD04-CFM-2
Ships on Jun 26, 2026
$ 809.00 USD
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$ 809.00 USD
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Karbonius E46 M3 CSL (S54) Carbon Snorkel - 2x2 Weave and Matte Finish

Karbonius E46 M3 CSL (S54) Carbon Snorkel - 2x2 Weave and Matte Finish is the ultimate performance and style upgrade for BMW E46 M3 enthusiasts. This high-quality carbon fiber snorkel is designed to replicate the renowned CSL design, enhancing airflow efficiency and engine performance while providing a sleek, race-inspired aesthetic. Made with a premium 2x2 carbon fiber weave and finished with a durable matte coating, it offers the perfect balance of form and function. Available through Turner Motorsport, this component ensures authenticity and precision engineering for the discerning BMW owner.

Key Benefits

  • Precision-crafted for seamless fitment on BMW E46 M3 models
  • Improves airflow for optimized S54 engine performance
  • Constructed with a 2x2 carbon fiber weave for superior strength and lightweight durability
  • Matte finish adds a modern, sporty aesthetic to the engine bay
  • Inspired by the legendary CSL design for an authentic motorsport upgrade
  • Available exclusively from trusted BMW performance specialists, Turner Motorsport

Elevate your E46 M3’s performance and style with the Karbonius E46 M3 CSL (S54) Carbon Snorkel - 2x2 Weave and Matte Finish, a must-have for enthusiasts aiming to achieve the ultimate driving experience.

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Karbonius E46 M3 CSL (S54) Carbon Airbox - Matte Finish
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T#:39329313
Part#: E46AD02-CFM-2
Ships on Aug 27, 2026
$ 2,449.00 USD
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$ 2,449.00 USD
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The intake generates what is probably one of the best noises of any sports car. The Karbonius CSL Style Airbox weighs in at a scant 1.7kg. It is made with 100% prepreg carbon fiber and baked at 125º in an autoclave at their facility in Spain under ISO 9001 Management Quality System rules by qualified staff.
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Karbonius E30 3-Series S54 CSL Carbon Airbox (2x2 Twill Weave) ...
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T#:35525685
Part#: E30AD01-CF-1
Ships in 3 Business Days
$ 2,259.99 USD
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$ 2,259.99 USD
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Karbonius E30 3-Series S54 CSL Carbon Airbox

The Karbonius E30 3-Series S54 CSL Carbon Airbox is a premium intake upgrade engineered for BMW enthusiasts seeking improved performance and iconic CSL styling. Designed to deliver superior airflow and breathtaking sound, this carbon airbox transforms the driving experience of E30 models fitted with the S54 engine. Manufactured using lightweight, high-strength carbon fiber, it combines durability with track-inspired aesthetics, making it a standout choice for any performance enthusiast. Available through Turner Motorsport, this airbox ensures seamless compatibility and exceptional quality.

Key Benefits

  • Enhanced horsepower and torque through optimized air intake design
  • Precision-engineered for BMW E30 models equipped with the S54 engine
  • Lightweight carbon fiber construction for reduced weight and superior durability
  • Produces a deep, resonant induction sound inspired by motorsport heritage
  • Sleek carbon-fiber finish adds a performance-oriented aesthetic under the hood

Turner Motorsport provides expert support and access to the Karbonius E30 3-Series S54 CSL Carbon Airbox, ensuring BMW owners unlock their vehicle's full potential with this high-performance upgrade.

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E30 BMW CSL Airbox - S54 Swap - 2x2 Matte
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Karbonius Composites - Corporate Logo
T#:21176935
Part#: E30AD01-2X2-MT
Ships on Jun 29, 2026
$ 2,139.00 USD
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$ 2,139.00 USD
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E30 S54 swap AIRBOX made 100% in prepreg carbon fiber in our facilities in Spain under ISO 9001 Management Quality System rules by qualified staff. The BMW M3 E46 CSL it´s one of the most famous and mythical cars in the world, and part of the success is due to the carbon airbox. This intake generates what is probably one of the best noises of any sports car. For that reason, a lot of BMW E30 users want to get the same noise in their E30´s S54 Swap. As the E46 CSL Airbox does not fit correctly on the E30 chassis with the S54 Engine, we did some modifications on our Airbox to get a perfect fitment on these swaps. The S54 E30 Airbox comes without the front inner canalization that usually brings fresh air from the front bumper, also the box it´s modified on the rear, near the servo unit to prevent friction in that area. All our pieces are numbered, so their origin and authenticity are granted. Kit includes: Airbox Certificate of Authenticity M Power sticker Does not include air filter (available) Features: Appreciable gain of power Aerodynamic design CNC machine-made items of aluminium Stainless-steel screws Reinforced in all key points, crews, connectors, etc. Awesome sound Aluminium threads 100% carbon fibre prepreg Cured in autoclave Exclusive and numbered piece Aggressive appearance 2 years warranty Fitment: BMW E30 S54swap Installation: Relatively easy to assemble. Not necessary to perforate or cut anything. You will simply disassemble the origin piece and assemble this one, although changing several original parts is necessary. Installation Difficulty: MEDIUM Warranty: Karbonius Airbox offers 2 years warranty against manufacturing defects. In KARBONIUS COMPOSITES we bet on the quality of our products, which are made 100 % of carbon fiber prepreg and cured in an autoclave in our facilities in Spain, by a manual process, highly qualified personnel and under exhaustive quality controls. For these reasons, because we are conscious of the quality of all our products, we offer our clients a guarantee of 2 years against any fault of manufacture. Our experience in Composites manufacture and hundreds of clients satisfied all over the world are the primary brands of a company whose aim is the satisfaction of the client through an exceptional product. All our pieces are numbered, so their origin and authenticity are guaranteed.
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Karbonius E9X M3 (S65) Carbon Inlet Plenum And Intake System 2x2 Twil...
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T#:36303309
Part#: E92AD02-CFM-2
Special Order: No Guaranteed ETA
$ 4,029.00 USD
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$ 4,029.00 USD
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Karbonius E9X M3 (S65) Carbon Inlet Plenum And Intake System ...
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T#:36303289
Part#: E92AD02-CF-2
Ships in 8 Business Days
$ 3,909.00 USD
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$ 3,909.00 USD
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This complete carbon fiber intake manifold replaces the factory plastic with a beautiful carbon fiber piece, also includes is a carbon fiber intake elbow from the manifold to airbox and a carbon fiber airbox cover to complete the carbon fiber transformation of you engine bay! *Does not include an ///M Badge*
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Karbonius E36 M3 (Euro S50) Carbon Airbox
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T#:34616671
Part#: E36AD01-CF-2
Ships in 3 Business Days
$ 2,449.00 USD
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$ 2,449.00 USD
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Karbonius E36 M3 (Euro S50) Carbon Airbox delivers a high-performance upgrade for BMW enthusiasts looking to boost their E36 M3’s engine response and horsepower. Engineered for the Euro-spec S50 engine, this carbon airbox enhances air intake efficiency, ensuring optimal airflow and a distinctively deep intake sound. Lightweight yet highly durable, the Karbonius airbox is crafted from premium carbon fiber, ensuring longevity and a sleek look under the hood. Available from Turner Motorsport, this airbox upgrade combines style with functional performance for a dynamic driving experience.

  • Improved Engine Response: Enhances air intake for a more responsive throttle and increased horsepower.
  • Premium Carbon Fiber Construction: Built from lightweight, durable carbon fiber that withstands heat and offers a refined aesthetic.
  • Engineered for Euro S50: Specifically designed to fit the BMW E36 M3 Euro-spec S50 engine, ensuring easy installation and compatibility.
  • Distinct Intake Sound: Produces a rich, deep sound that elevates the driving experience.
  • Trusted Quality from Turner Motorsport: Available through Turner Motorsport, a respected supplier of performance BMW parts.
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Carbon Fiber OEM-Style Intake Manifold - E46 M3
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T#:37521034
Part#: E46AD09-CF-2
Ships in 3 Business Days
$ 1,699.00 USD
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$ 1,699.00 USD
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The CSL Airbox is one of the most demanded improvements among BMW M3 E46 enthusiasts. That is both for performance gain and for the sound it brings to the car. On the other hand, it is a laborious, time-consuming, and expensive modification. For those who are looking for a similar sound to the CSL airbox but are not looking for HP gain, we have developed the Karbonius OEM Style S54 airbox. It is a simplified version of the CSL airbox, that, apart from a louder sound from the engine (+12 dB compared to plastic OEM), gives an awesome appearance and allows for easy installation using the stock elbow and MAF sensor. No need to remap! Regarding power increase, we got +4HP in a recent dyno test compared with the OEM airbox. Not really significant considering that dynos can have a 2% margin error. In conclusion, and pending new tests in the future, we can say no significant power increase and no HP loss. NOTES: Need to install with CSL Crankcase breather hose -- BMW # 11157833649) In SMG version, need to install a Genuine BMW CSL SMG Expansion Tank -- BMW # 21532282549 Fitment: BMW M3 E46 BMW Z4 M
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