Private Label MFG downpipes are designed to improve your turbo charged vehicles performance. Private Label MFG Power Driven BMW 135i/335i/435i/M235i (N55)DOWN PIPES (CATLESS) 2013+ downpipes are no exception, these pipes are made from 304 stainless steel. They connect to the headers with a 4" diameter opening and V band flange. The larger diameter design will improve exhaust flow, keep boost pressure up and provide improved throttle response. This down pipe eliminates the catalytic converters. Each down pipe has 2 oxygen sensor locations. Thick flanges, sturdy hangers and increased flow make these down pipes a must have for all BMW enthusiasts.

The only TRUE 4" catless downpipes currently on the market! 4" tubing until cat-back flange

100% Hand Crafted - from premium stainless steel

Water-jet cut Stainless cat-back flanges, and CNC'd 304 Stainless V-Band flanges.

In addition to an intoxicating and exotic sound, these downpipes add significant power and virtually eliminate turbo lag!


Smooth radius bends to decrease turbulence and increase flow.
Gains up to 20whp
Heavy duty Mandrel bent 304 stainless steel
Brushed Stainless steel finish

Full 4 inch design to taper down to rear flange

Direct, bolt in replacement
Fully Tig welded


More aggressive exhaust sound

APPLICATIONS

BMW F22/F23/F32/F33/F36 135i/235i/M235i/435i/435i X Drive N55 2013+