AWE Exhausts and Downpipes for Audi B8 S4 - AWE
This AWE lineup represents the finest in 3.0T exhaust technology. From the rowdy Track Edition to the sophisticated Touring Edition to resonated or non-resonated downpipes, there’s a performance option for every type of Audi S4 3.0T driver.
Audi S4 Exhaust System. Borla® Aftermarket Performance Mufflers
Borla performance exhaust systems for the Audi S4 Exhausts have more HP, aggressive sound, & a million-mile warranty. Great Aftermarket Muffler & parts.
Audi B8/B8.5 S4 Quattro 3.0T Performance Exhaust Parts & Upgrades
Change the tone of your B8 S4/S5 3.0T exhaust with an easy-to-install downpipes with integrated X-pipe to your factory cat back exhaust. Brand: ES#: 4376068 Mfg#: 012616LA01KT
Performance Exhaust Systems for Audi S4 - MagnaFlow
MagnaFlow offers premium performance exhaust systems for your Audi S4. Determine the power and sound you demand for your S4 and shop all available exhaust systems online. Select your Audi S4 year, sub-model and engine details to buy the best exhaust system that fits your needs.
Audi B8 / B8.5 S4 / S5 Valved Sport Exhaust System
Our new valved setup for the B8 / B8.5 platform delivers incredible sound throughout all rev ranges and allows for the ultimate flexibility. Constructed of T304 Stainless Steel, this system runs 2.5 inches all the way back to the tips.
AWE Tuning Audi B9 S4 3.0T Exhaust Suite - AWE
From the masters of S4 performance, AWE proudly presents the B9 S4 exhaust solution. Signature AWE tone, performance, and options for every taste and budget. Max gains of 16 hp and 17 ft-lbs of torque at the crank (exhaust)
Performance Exhausts from Milltek for the S4- Milltek Shop.com
S4 Catback, Turboback Systems and Downpipes, Decats and Sports Cats from Milltek - Stainless Exhausts with finance available. Milltek performance exhausts are made in the UK.
B8 S4 EXHAUST SYSTEM - Fast Intentions
This Cat Back exhaust system is the premier upgrade for all S4 owners looking to maximize the performance from their 3.0L 24V TFSI V6 engine. Our cat back exhaust system will enhance the sound that Audi created from the factory by making it smoother, deeper, and louder.
B7 S4 EXHAUST - Fast Intentions
This Cat Back exhaust system is the premier upgrade for all S4 owners looking to maximize the performance from their 4.2L FSI V8 engine. Our exhaust system will enhance the sound that Audi created from the factory by making it smoother, deeper, and louder.
B5 S4 EXHAUST - Fast Intentions
This Cat Back exhaust system is the premier upgrade for all S4 owners looking to maximize the performance from their 2.7L V6 Bi-Turbo engine. Our exhaust system will enhance the sound that Audi created from the factory by making it smoother, deeper, and louder.