Product Description
Details:In house testing produced a max gain of +14 horsepower and +39 ft. lbs. of torque verified by our in house dyno
A unique 3.5" to 4" stepped design is used to increase exhaust velocity
Constructed of durable mandrel bent brushed 304 stainless steel tubing for maximum performance, corrosion resistance and strength eliminating cracking
100% hand TIG-Welded by certified craftsmen for race proven strength and durability
Designed using a resonance chamber to help reduce the in-cab resonance found with other non-catted down pipes
BMW 335i (E9x) /135i (E82/E88) 11-13 L6-3.0L (t) N55
