T304 Mandrel bent stainless steel for sound and performance
To ensure proper operation and to avoid a check engine light, Stage 2 software must be used.
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
Includes a new alternator, power steering and crank pulley that allows you to use a stock belt.
10X Entries Into Our F80 M3 Sweepstakes Vehicles with clutched alternator pulley require hardware kit - ES271279 for installation
Brand:
ES#:
3985
Mfg#:
MK44CPK-RED
In Stock
ON SALE!
$312.99
This product was last offered at the strikethrough price on 06-13-2026
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.
Let us help you find the parts that fit your
Volkswagen
Lifetime Replacement
