The S58 Deserves Better Than Stock.
Straight-piped or catted. Valved or race. Built for the S58 twin-turbo platform.
No Resonators. No Filter.
G82 M4 Competition running our catless downpipes, valved catback + equal length resonated y-pipe. Straight through, no drone tuning, no compromise. Turn it up.
This Build
Build Your System.
Pick your material. Pick your config. Ships to your door.
The Full Lineup.

BMW G80 M3 / G82 M4 Valved Equal Length Z-Pipe Exhaust System

BMW G80 M3 / G82 M4 Valved Titanium Z-Pipe Exhaust System

BMW S58 G8X Titanium Front Mount Intake System

BMW G80 M3 / G82 M4 Valved Exhaust System

BMW S58 Titanium Catless Downpipes w/ Upgraded Heat Shield

BMW G80 M3 / G82 M4 Titanium Valved Exhaust System

BMW S58 Catted Downpipe

BMW G80/G82 Cold Air Intake System
T304 or Titanium?
Both are the same system. Different material. Here's what changes.