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.
Note: This is a "Race Only" product used solely for competition. 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. A check engine light will emitt and aFe recommends using a programmer but it is not necessary.
BMW 335iS 11-12 L6-3.0L (tt) N54
1 Series M Coupé (E82) 11-12 L6-3.0L (tt) N54