The aFe Power Twisted Steel, cat-delete, race down-pipes eliminate the catalytic converters for maximum exhaust flow for the popular BMW 1 series and 3 series with the N54 twin turbo motor. In recent dyno testing, these race pipes produced 17 horsepower and 32 x ft. torque over the factory down-pipes. These high performance race pipes are constructed out of lightweight, TIG-welded, 3 inch, brushed finish, 304 stainless steel and use thick 3/8 inch 304 stainless steel flanges for a leak-free seal and a factory fit.
All aFe exhaust systems are engineered and manufactured in the Corona, California manufacturing facility.
Tig-Welded: 100% TIG-Welded by certified craftsmen for race proven strength and durability. TIG-Welding provides the strongest welds reducing stress cracks.
Factory O2 Sensor Locations: These down-pipes use factory mounting locations for the O2 sensors.
Hassle-Free Installation: All hardware and brackets are included for a hassle-free installation.
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.
This system requires an aftermarket electronic module to work properly with the vehicle.
BMW 335iS 11-12 L6-3.0L (tt) N54
1 Series M Coupe (E82) 11-12 L6-3.0L (tt) N54
All aFe exhaust systems are engineered and manufactured in our Corona, California facility.