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
Brand:
ES#:
5457423
Mfg#:
UVM63MMDUALOUTX1
Ships in 1 Business Day
ON SALE!
SAVE 10%
$399.99
This product was last offered at the strikethrough price on 08-25-2026
Stage 2 ECU tune that provides the necessary calibration for aftermarket downpipes and aggressive exhaust crackles while maintaining Stage 1 power levels for 2017-2020 Audi B9 S4, S5, and SQ5 models.
Sprint Booster is an aftermarket electronic module that plugs in between the accelerator pedal and the engine control unit (ECU) in vehicles equipped with an electronic throttle control.
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.
Lifetime Replacement
