Straight-through tubing section replaces the heavy and restrictive Original catalytic converters for maximum power and sound; recommended for track/off-road use only.
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.
FEATURES:
- 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 Original primary catalytic converters
- All Fabspeed performance products are backed by the Fabspeed Lifetime Limited Warranty
