Skip to main content

BMW F10 535i/640i N55 Catted Downpipe

(No reviews yet) Write a Review

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 2000°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 intended for off-highway application only. Installation of this part on a vehicle that is driven on public roads may violate U.S. and Canadian laws and regulations relating to emission requirements and motor vehicle safety standards.