We are extremely excited to present our E Series 135i / 335i / 335xi 4" Hi-Flow downpipe. This downpipes adds significant power and virtually eliminates turbo lag, making the N55 engine even more responsive!
100% hand crafted in the USA from premium 304 stainless steel - flanges and O2 bungs included!
CNC 304 Stainless cat-back flanges, and CNC'd 304 Stainless V-Band flanges.
100% TIG welded, argon back-purged.
Set of our exclusive bomb-proof exhaust gaskets included.
Grade 10.9 Metric Hardware(145,000PSI tensile strength, C32-C39 Rockwell, Zinc Plated), and Nord-Lock positive locking re-usable washers included.
Factory location O2 bungs
Available with a 2000Â°F ceramic coating. Coatings come with a 3 year warranty against corrosion and rust to original owner.
Lifetime warranty against any manufacturing defects given to original owner.