Take 20-40% Off Clearance B6 S4 Upgrades
Enjoy your B6 S4 with the most engaging, race-inspired, performance catback exhaust system. Intoxicating exhaust notes fuel your desire to push your engine to its limits with every ounce of power and every engine revolution. Experience your driving passion with our ECS Catback Exhaust System.
Release That V8!!
Fits Audi B6 S4 4.2L V8
Audi B6 S4 Catback Exhaust
Choose your own configuration along with your choice of exhaust tips and more!
10X Entries For Our 25th Anniversary Sweepstakes!
Brand:
ES#:
4756568
Mfg#:
041486ECS01
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Availability:
Ships on Oct 29, 2026
Ships on Oct 29, 2026
Build-Your-Own Universal Vacuum-Actuated Valved Mufflers Kit
Choose between a 2.5" or 3.0" valved mufflers to complete your custom exhaust.
10X Entries For Our 25th Anniversary Sweepstakes!
Brand:
ES#:
4715424
Mfg#:
044081LA01
Choose how many gift cards you would like below. You can set the denomination in your cart during checkout.
Availability:
In Stock
In Stock
B6 S4 Muffler Delete Kit - With 4.0" Chrome Tips
Add an aggressive exhaust note to your B6 S4 so you can hear that V8 roar!
10X Entries For Our 25th Anniversary Sweepstakes!
Brand:
ES#:
4660245
Mfg#:
042002LA01KT2
B6 S4 Muffler Delete Kit - With 4.0" Black Chrome Tips
Add an aggressive exhaust note to your B6 S4 so you can hear that V8 roar!
10X Entries For Our 25th Anniversary Sweepstakes!
Brand:
ES#:
4660138
Mfg#:
042002LA01KT