aFe is proud to introduce the aFe Twisted Steel Down-Pipe with a 400 CPSI high-flow catalytic converter for the 2012-2013 BMW 335i (F30) with the L6-3.0L (N55) engine. In testing this system resulted in a max gain of 10 horsepower and 16 lbs. x ft. of torque and outflowed the restricted OE catalytic converter by up to 150%. This high performance down-pipe delivers the perfect balance of pure, race-inspired performance, in-cabin driving comfort and the excitement of exhaust sound and tone during normal cruising or aggressive hard throttle. aFe also included a massive, lightweight, 4" diameter, 304 stainless steel tube with a 400 CPSI, high-flow catalytic converter.
100% TIG-Welded by certified craftsmen for race proven strength and durability. TIG-Welding provides the strongest welds reducing stress cracks.
High-Flow Catalytic Converter:
This system uses a 400 cell per square inch (CPSI) stainless steel high-flow catalytic converter designed for maximum flow and performance.
Factory O2 Sensor Locations:
Factory mounting locations for all O2 sensors.
OE style brackets are included for a hassle-free installation. This unit also comes with a lifetime warranty.
This is a Race Only product that is to be used solely for competition, it cannot be used on vehicles that are operated on public streets, roads or highways. Its use is limited to closed-course and open-course racing that is formally sanctioned by a recognized racing organization. Any other use, including recreational off-road use, could be in violation of local, state and federal laws. To complete the purchase of this item, aFe Power competition acknowledgement/liability release form must be filled out and submitted.
aFe down pipes are engineered and manufactured in our Corona, California manufacturing facility.