Audi B7 S4 V8
Choose your own configuration along with your choice of exhaust tips and more!
10X Entries For Our 25th Anniversary Sweepstakes!
Control your exhaust valves with the click of a button! Includes a standalone vacuum pump, wiring, vacuum hose, and controllers.
10X Entries For Our 25th Anniversary Sweepstakes!
10X Entries For Our Spin To Win Sweepstakes!
This product was last offered at the strikethrough price on
06-13-2026
Lifetime Replacement
Choose between a 2.5" or 3.0" valved mufflers to complete your custom exhaust.
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
Double wall stainless steel. Single 2.25" inlet, Dual 3" outlet.
Lifetime Replacement
2.25" stainless steel with quad 76.2mm polished tips
Lifetime Replacement
Double wall stainless steel. Single 2.25" inlet, Dual 3" outlet.
Lifetime Replacement
Achieve perfect exhaust fitment!
10X Entries For Our 25th Anniversary Sweepstakes!
This product was last offered at the strikethrough price on
06-13-2026
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
Holds up your exhaust and keeps it from swaying
Lifetime Replacement
2.5" Inlet - 3.5" Outlets - 1x1 Carbon Fiber Sleeves
Double wall stainless steel. Single 2.25" inlet, Dual 3" outlet.
Not vehicle specific. You MUST measure prior to purchasing!
Lifetime Replacement
Achieve perfect exhaust fitment!
10X Entries For Our 25th Anniversary Sweepstakes!
This product was last offered at the strikethrough price on
06-13-2026
Lifetime Replacement
