The S3 APR Catback Exhaust System will personalizes your Audi's looks, sound and performance. This system is valveless and beautifully hand-crafted.
Our stainless-steel piping releases an unrestricted aggressive growl. Unwanted frequencies are reduced with our Helmholtz resonator. Strong high-quality bracketry and OEM-style clamps hold the system steadily in place, making the install or removal a snap, and fitment simple, yet precise. A cast 3" to quad 2.5" rear splitter creates an ultra-smooth transition, steadily feeding exhaust gasses out of the system while looking tidy from under the rear bumper.
Lastly removable 4" polished slash-cut exhaust tips finish the system, adding a classy motorsport-inspired touch to the rear of the vehicle. For the more track-minded enthusiasts where weight, sound and price point all are highly desired metrics, the APR Valveless system is the desired configuration. In this configuration the axle-back portion of the exhaust has the mufflers and valves removed. Weight drops considerably and the system becomes more aggressive. The system is louder and more aggressive, but thanks to the centre Helmholtz chamber, drone is reduced, giving a more pleasant, yet aggressive driving experience. However, when upgrading other exhaust components, the system transforms and becomes unapologetically raw with maximum aggression - A true track enthusiast's dream.
T304 stainless-steel construction
Argon-back-purged TIG welding throughout
Single 3" to quad 2.5" mandrel-bent brushed tubing
Ultra-smooth cast 3" to quad 2.5" splitter
Aggressive, unrestricted exhaust note
Brushed-finished straight-through Helmholtz drone frequency reducing resonator
Polished 4" slash-cut exhaust tips (removable and upgradable)
Rugged and precise mounting brackets
OEM style slip clamps and Torca AccuSeal T304 tip clamps
Direct bolt-on fit
Low-profile design, suitable for lowered vehicles
Larger diameter piping compared to stock
Larger diameter tips compared to stock
Lighter than stock
In-house design with world-class manufacturing and quality control
Easy to install
Find out more about S3 APR Catback Exhaust System here.
All our parts are genuine APR parts. Our 12 month warranty is valid if fitted by one of our Authorised APR Dealers on our network. Click here to find your nearest APR dealer.