Post-catalyst system.
Post-catalyst system.
Deepen the exhaust note without replacing the entire exhaust system
This product was last offered at the strikethrough price on
07-10-2026
3" Large bore downpipe with Hi-Flow Sports cat and 3" stainless steel cat-back with dual 100mm Titanium tips
Specially crafted for the eight-speed Tiptronic transmission, featuring an x-pipe for enhanced exhaust tone, and AWE 180 Technologyâ„¢ to eliminate drone.
2.76" stainless steel with your choice of tip style
3" Down pipe with Hi-Flow Sports cat and 2.75" stainless steel cat-back with twin 80mm GT80 polished tips
Enhance the sound and performance of your S4 with an ECS Tuning cat-back and a Kohlefaser Luft-Technik Intake System
Don't See A Bundle You Want - Give Us A Call Or Chat - We Will Make One!
This product was last offered at the strikethrough price on
05-05-2026
3" downpipe with Hi-Flow Sports cat and 2.75" stainless steel cat-back with dual Polished 76.2mm Jet tips
Provides an aggressive, signature soundtrack that will react to every increase and decrease in throttle input, unlocking an entirely new driving experience.
For vehicles from the 2016 model year only (Facelift)
+21% increase in flow over factory mufflers.
Add an aggressive exhaust note to your B6 S4 so you can hear that V8 roar!
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This product was last offered at the strikethrough price on
06-13-2026
Hand-crafted from 2.5" T304 stainless steel with an X-pipe for an enhanced exotic exhaust tone. Features AWE's proprietary 180 Technology® resonators.
Maximize your engine's performance!
Equipped with the same precision-engineering as its Touring Edition counterpart, minus the resonators up front and 180 Technology® resonators in the rear.
100% handcrafted in Italy. Stainless cat-back system with dual round tips
Replaces the restrictive secondary midpipe - Fits both OE and Milltek Sport systems
*** Not all vehicles come equipped with secondary cats, visual check recommended before ordering ***