Exhaust Systems for the 2015-21 Subaru WRX and WRX STI (VA generation): axle-back mufflers, full cat-back systems, downpipes and front pipes, mid-pipes, valve simulators and muffler deletes in T304 stainless, with chrome, black and carbon tip options. Exhaust is the one upgrade you hear every single drive. Everything on this page is confirmed for WRX fitment.
WRX and STI share the sedan body, doors and decklid; the STI adds its own front bumper details, hood scoop and factory wing. The 2018 refresh changed the front bumper and grille, so front lips are sold 2015-17 or 2018-21. Exhaust systems fit by engine — FA20 and EJ257 systems are different. This page covers WRX, WRX Premium, WRX Limited, STI and STI Limited; each listing states the exact trims and model years it fits.
Materials run T304 stainless steel. Systems are mandrel-bent and TIG-welded; each listing states resonated or non-resonated and the tip finish.
Frequently asked
Will I get drone at highway speed? Resonated systems here are tuned to stay quiet at cruise and open up under throttle. Non-resonated and muffler-delete options are louder throughout and say so.
Do I need a tune? Axle-back and cat-back systems are bolt-on with no tune required. Downpipes and header changes are the only ones that may need one — each listing states it.
Browse all 2015-21 WRX parts, or jump to Exterior Trim, Front Splitters & Lips.