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BMW E92 335i N54 with Fabspeed Catbypass Pipes ()
  • BMW E92 335i N54 with Fabspeed Catbypass Pipes
  • Replaces the heavy and restrictive factory catalytic converters with a straight-pipe design for maximum power and exhaust sound
  • Fabspeed's Catbypass with Down Pipes for the BMW 335/135i offers significant increases in horsepower and torque by 32 whp and 39 ft-lbs
  • Fabspeed's Catbypass Downpipes for the BMW 335/135i offer significant exhaust flow improvements and weight savings
  • We craft our Catbypass Downpipes in house at our facility for premium fitment and performance.

BMW 335/135i Catbypass Downpipes


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Product Details:

Straight-through tubing section replaces the heavy and restrictive OEM catalytic converters for maximum power and sound; recommended for track/off-road use only.                                                                         



  • Fits all BMW 335/135i vehicles (2006-2011)
  • Improves power by 32 whp and 39 ft-lbs of torque
  • Straight-through design allows for maximum power and sound
  • Constructed from mirror-polished T304L stainless steel
  • Direct bolt-on replacement for OEM primary catalytic converters
  • All Fabspeed performance products are backed by the Fabspeed Lifetime Limited Warranty

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