Audi B7 S4 V8
Choose your own configuration along with your choice of exhaust tips and more!
10X Entries For Our 25th Anniversary Sweepstakes!
For Manual Transmissions - Comes with cats and 2.5" cat back
2.25" stainless steel with quad 76.2mm polished tips
Lifetime Replacement
Upgrade your ride with the Valvetronic Designs universal valve muffler kit, a premium T304 stainless steel solution that delivers an aggressive, valved exhaust note at the click of a button
For Automatic Transmissions - Comes with cats and 2.5" cat back
2.25" stainless steel with quad 76.2mm polished tips
Lifetime Replacement
Designed to handle continuous temperatures up to 1,800°F
Lifetime Replacement
Upgrade your ride with the Valvetronic Designs universal valve muffler kit, a premium T304 stainless steel solution that delivers an aggressive, valved exhaust note at the click of a button
Increase power by containing exhaust heat - Lava
Upgrade your ride with the Valvetronic Designs universal valve muffler kit, a premium T304 stainless steel solution that delivers an aggressive, valved exhaust note at the click of a button
Designed to handle continuous temperatures up to 1,800°F
Lifetime Replacement
Upgrade your ride with the Valvetronic Designs universal valve muffler kit, a premium T304 stainless steel solution that delivers an aggressive, valved exhaust note at the click of a button
Upgrade your ride with the Valvetronic Designs universal valve muffler kit, a premium T304 stainless steel solution that delivers an aggressive, valved exhaust note at the click of a button
Designed to handle continuous temperatures up to 1,200°F
Lifetime Replacement
Secures items under the hood and resists rust
Lifetime Replacement
1" X 3ft
Lifetime Replacement
