Smooth bends, tight packaging, and two attitudes. The SwitchPath™ Exhaust is comprised of handcrafted 3-inch and 2.5-inch U.S.-sourced T304L stainless steel with a valved passenger-side tip outlet. SwitchPath™ retains the factory valve behavior, and obeys the S3’s ECU commands based on throttle input, engine speed, and Drive Select. Sneaking out in the morning or creeping through town? Close the valve. Ready to rip? Toggle into Dynamic and your S3 will sing a signature AWE tune with enhanced crackles that will provoke a firm grin. While the SwitchPath™ is designed to work with the factory controls, if you want to have full control to open or close any time, be sure to check out the AWE SwitchPath™ remote, for push button mood control. And if you ever want to flip to full-rowdy all the time, AWE made it easy to convert between SwitchPath™ and Track Edition if you decide at a later date to change your volume. Easy. AWE SwitchPath™ comes standard with 102mm double-walled, slash-cut tips in your choice of Chrome Silver or Diamond Black, complete with stamped AWE logo. you're looking at the new standard for Audi’s skyrocketing small sedan.This Part Fits: Year Make Model Submodel 2020 Audi S3 Premium 2015-2020 Audi S3 Premium Plus 2015-2019 Audi S3 Prestige