complete drop-in upgrade will bolt up to stock/Stock Fit Turbo
2X Entries Into Our F80 M3 Sweepstakes
complete drop-in upgrade will bolt up to stock/Stock Fit Turbo
2X Entries Into Our F80 M3 Sweepstakes
Designed to seamlessly fit in place of factory catalytic converter
This product was last offered at the strikethrough price on
09-29-2026
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
Stainless steel non-resonated cat-back exhaust system with dual round, polished tips
Designed to handle continuous temperatures up to 1,800°F
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
Contains all of the hardware you need to install a new catalytic converter on your A4
10X Entries Into Our F80 M3 Sweepstakes
This product was last offered at the strikethrough price on
05-02-2026
Designed to handle continuous temperatures up to 1,800°F
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
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
Secures items under the hood and resists rust
Designed to handle continuous temperatures up to 1,200°F