aFe is proud to introduce the aFe Twisted Steel® Down-Pipe with a 300 CPSI high-flow catalytic converter for the 2012-2014 BMW F30 335i 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 300 CPSI, high-flow catalytic converter. The catalytic converter is not only environmentally friendly it also prevents check engine lights.
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 49 state legal 300 cell per square inch (CPSI) stainless steel high-flow catalytic converter designed for maximum flow and performance while preventing a check engine light.
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.
Also Fits: 2014 BMW 435i (F32) L6-3.0L (t) N55 2014 BMW M235i (F22) L6-3.0L (t) N55