Active Autowerke High Flow Catted Downpipes - S63

Product Details

For over 30 years, Active Autowerke has been the one to turn to for high quality BMW performance products. Committed to enhancing the performance of BMWs through the highest quality products is what Active Autowerke is all about. 

These S63 downpipes are strategically engineered to virtually eliminate the immensely restrictive characteristics of the factory M5 downpipes therefore reducing radiant heat and increasing performance.

Features:

• NO CEL when using this downpipe

• GESI EPA registered high flow and fully OBD2 compliant

• Casted upper stainless steel V-Band for precise fitment

• 4.50" diameter piping allows for maximum power output

• Quicker turbo spool

• Rated for 500 to 850 hp applications

• Withstands up to 1500 F

• Can reach operational efficiency within 9 seconds of startup

• Easily bolts-on no cutting or welding required

• Accepts OEM O2 sensor heat shield

• Durable construction from TIG welded 304 stainless steel

• Precise fitment

• Ultra high flow 400 cell per square inch catalyst

• EPA compliant for use on OBD2 vehicles (1996 and newer) except in California

• 304 stainless steel substrate is furnace braised to the mantle for outstanding durability

• GESi proprietary precious metal loading technology ensures greatly reduced emissions

• Ideal for Forced Induction Applications with no loss of HP

• Both passengers and drivers are safe from harmful emissions and noise

• Covered by 5 Year / 50,000 Mile Warranty (on catalytic converter)

• Made in Miami, Florida

Not for sale or use in the state of California on any pollution-controlled vehicle as per the California Air Resources Board.

Prop 65 Warning

Product Q&A

Lifetime Replacement

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