3.5Inch inlet 7.5Inch Round Varex muffler Merch Tune your S3 sound output

Tune your S3 sound output to your personal preference any time

providing a stunning appearance that complements the aggressive sound of the XFORCE exhaust system

Hot-dog center resonator

providing you the highest level of sound when the valve is open whilst still providing a balance for all day everyday vehicle use

all using one of the two supplied key fobs

3.5Inch inlet 7.5Inch Round Varex muffler Merch Tune your S3 sound outputMake it loud, make it quiet, make it yours. The Patented Varex valved universal mufflers provides enthusiasts with a setup thats as quiet as the stock exhaust when you want, or that unleashes the sound of your beast when you want, all using one of the two supplied key fobs. Toggle between closed,25%,50%,75% and fully open valve positions to suit your needs. To take it to the next level, add a Smartbox for the ultimate in control using our patented