CTS Turbo Audi S4 B8/B8.5 Resonator Delete X-Pipe

The CTS Turbo Res Delete X-Pipe pulls the heavy stock resonators and replaces them with an integrated X-pipe that lets the engine sound the way it was meant to. The result is a deeper, throaty exhaust note with that signature supercharger, but refined enough that you're not fighting drone on the highway. We laser scanned the factory exhaust section and matched every OEM hanger and mounting point exactly, it fits like it came from the factory. Built from 304 stainless steel and TIG welded throughout. Lighter than the stock piece, completely reversible.

Features

- 304 Stainless Steel construction - Deeper, more aggressive exhaust note - Integrated X-pipe for balanced exhaust flow - Laser scanned OEM hanger locations — true bolt-in fit - No drone - Lighter than factory resonator - Completely reversible installation

Fitment

2009–2016 Audi S4 Sedan (B8/B8.5) — 3.0 TFSI Supercharged V6 Does not fit: S5, A4, Avant, Allroad, or any other vehicle with the 3.0 TFSI engine

This part also goes by the following cross reference.

Cross Reference Part Number:

Fits These Vehicles 2 applications

S4

Make	Model	Engine	Years
AUDI	S4		2010–2016
AUDI	S4 (B8/8.5)		2010–2016

Fitment data last updated: 2026-06-27