Primary Sport Cat Downpipes

Regular price$2,995.95
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Eliminate the heavy and restrictive factory catalytic converters with HJS German Tri-metallic imported 200 cell 92% flow high flowing stainless steel downpipes for maximum power and an exhilarating sound.                                                                                                                         


  • Fits all BMW F10 M5 vehicles (2011+)
  • Replaces the restrictive factory catalytic converters with ultr premium quality HJS German emissions technology extra large 200CPSI catalytic converters for increased throttle response, and a more aggressive exhaust sound
  • Constructed out of T304L stainless steel with CNC machined flanges and laser cut brackets
  • Manufactured entirely in-house by our precision machine shop at Fabspeed Motorsport
  • Ultimate quality designed, engineered, Dyno developed at Fabspeed with 25 years of Excellence. 
  • Designed to fit seamlessly with the factory rear catback F10 M5 exhaust system and are also compatible with any other aftermarket exhaust system that is designed to accept fitment of the BMW OEM catalytic converters.
  • Includes two downpipes, labeled left side and right side for easy installation, with hardware included. 
  • Bolt-On and enjoy guaranteed NO Check Engine Lights with HJS Germany Fabspeed quality.  
  • Any other aftermarket brand catalytic converter is unacceptable for the Ultimate Driving Machine. Caveat Emptor. 
  • Fabspeed Motorsport USA 25+ years of Excellence and Experience. 

DISCLAIMER: This product removes the OEM catalytic converters from the vehicle, and as such, is strictly intended for closed track events and off-road use only. This product contains a High-Flow Sport Catalytic Converter solely intended for track and race cars as it is NOT California Air Resources Board Certified and not EPA certified. You are hereby informed and warned to check your local, state, and federals laws before buying and installing these or any aftermarket parts to be sure whether usage is in violation. All installation-risk and use-risk is borne by the end-user and installer of these parts.

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