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
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
Take total command of your Audi RS3 8V Sedan with the XFORCE 3.5” VAREX cat-back—OEM-integrated SmartBox control, race-bred flow, and on-demand sound that adapts to every drive.
Brand:
ES#:
5435140
Mfg#:
ESRS38VSVKSB
Ships in 2 Business Days
ON SALE!
SAVE 10%
$2474.99
This product was last offered at the strikethrough price on 06-30-2026
Transform your Audi RS3 8V Sedan with the XFORCE VAREX 3.5” valved cat-back OEM+ fitment, commanding race-ready sound on demand, and refined cruising at the push of a button.
Brand:
ES#:
5435121
Mfg#:
ESRS38VSVKCS
Ships in 2 Business Days
ON SALE!
SAVE 10%
$2294.99
This product was last offered at the strikethrough price on 06-30-2026
Our name says it all. That's why ECS Tuning is dedicated to providing our customers with the broadest possible assortment of engine tuning options at a range of prices and options to fit any budget. Start small and grow your car into something special with performance engine upgrades from a company that has tuning in its name and its blood.
