Private Label MFG downpipes are designed to improve your turbo charged vehicles performance. Private Label MFG Power Driven BMW M3 / M4 3inch testpipe 2014+ (S55) DOWN PIPES (CATLESS) are no exception, these pipes are made from 304 stainless steel. They connect with a 3" diameter opening and V band flange. Rather than necking down closer to the turbos like most of our competitors, our 3" catless downpipe feature a full 3" design up to the last couple of inches of the pipe which allows an increase of flow.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 and increased flow make these down pipes a must have for all BMW enthusiasts.

The only TRUE 3" catless downpipes currently on the market!

100% Hand Crafted - from premium stainless steel

Water-jet cut Stainless cat-back flanges, and CNC'd Stainless steel 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 25 whp and 30 wtq with tunning
Heavy duty Mandrel bent 304 stainless steel
Brushed Stainless steel finish

Full 4 inch design to taper down to rear flange
Additional wideband o2 bungs
Direct, bolt in replacement
Fully Tig welded
More aggressive exhaust sound

APPLICATIONS:

2014+ BMW M3 & M4 with the S55 Engine
2014+ F80/F82/F83 BMW M3 & M4