We are thrilled to present our F10 535i / 640i N55 Downpipe. This downpipe adds significant power and helps eliminate turbo lag.
Our F10 535i / 640i N55 Downpipe Features:
Typical gains with tuning in the 20+hp range!
100% hand crafted in the USA from premium 304 Stainless Steel - flanges and O2 bungs included!
Water-jet cut 304 Stainless cat-back flanges.
100% TIG welded, argon back-purged.
Factory location O2 bungs, additional bungs for a wideband 02 sensor available.
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.
This product is designed for off road use only.