Looking for aftermarket parts to modify or upgrade your 2018 Subaru WRX STI with exhaust, mufflers & tips? At Tunersports.com we carry a huge selection of the top name brand performance exhaust, mufflers & tip parts and accessories for your WRX STI.
Whether you have a 2018 Subaru WRX STI in Base to Type RA trim we have you covered. With exhaust, mufflers & tips from axle back to headers & manifolds we have 35 WRX STI exhaust, mufflers & tip mods available. All parts have free shipping to the Continental US 48 States.
 IN STOCK Turbo XS Exhaust Adapters ADA-OEMDP-3CB-1Turbo XS Subaru OEM Downpipe to 3in Cat-Back Adapter w/Stainless Steel Exhaust Gasket $61.81
|
 IN STOCK Turbo XS Exhaust Adapters ADA-3DP-OEMCB-1Turbo XS Subaru 3in Downpipe to OEM Cat-Back Adapter w/Stainless Steel Exhaust Gasket $80.67
|
 IN STOCK Turbo XS Exhaust Adapters ADA-3DP-OEMCBTurbo XS Subaru WRX/STi 3in Downpipe to OEM Cat-Back Adapter w/Standard Exhaust Gasket $61.81
|
 IN STOCK Turbo XS Exhaust Gaskets GEMH-EJ2025Turbo XS Subaru EJ20/EJ25 4-Layer Stainless Steel Exhaust Manifold to Header Gasket - Pair $41.36
|
 IN STOCK Injen Catback Exhaust SES1207TTInjen 15-20 Subaru STI Cat Back Exhaust w/ Quad Titanium Tips $1,213.76
|
 IN STOCK Torque Solution Exhaust Adapters TS-SU-480Torque Solution Subaru 3in Aftermarkert Downpipe To OEM Catback Exhaust Adapter $64.77
|
 IN STOCK Torque Solution Exhaust Adapters TS-SU-479Torque Solution Subaru Stock Downpipe to 3in Aftermarket 3in Catback Exhaust Adapter $64.77
|
 IN STOCK Mishimoto Cat-back Exhaust MMEXH-WRX-15Mishimoto 2015 Subaru WRX 3in Stainless Steel Cat-Back Exhaust $1,159.95
|
 IN STOCK Mishimoto Exhaust Adapters MMEXH-ADAP-SDAEMishimoto Subaru Exhaust Adapter, Stock Downpipe to 3in Exhaust $72.00
|
 IN STOCK Mishimoto Exhaust Adapters MMEXH-ADAP-3DSEMishimoto Subaru Exhaust Adapter 3 Downpipe to Stock Exhaust $72.00
|
 IN STOCK Invidia Gemini - Titanium Tips HS15STIGM4STInvidia 2015+ Subaru WRX / STI Gemini/R400 Single Layer Quad Titanium Tip Cat-Back Exhaust $1,136.78 SALE
|
IN STOCK Turbo XS Exhaust Adapters ADA-3DP-OEMCB-1Turbo XS Subaru 3in Downpipe to OEM Cat-Back Adapter w/Stainless Steel Exhaust Gasket $80.67
|
 IN STOCK CORSA Performance Cat-Back Sport 14857Corsa 2015 Subaru WRX Cat Back Exhaust, Polished Quad 3.5in Tips *Sport* $1,856.99
|
 IN STOCK Invidia Gemini - Stainless Tips HS15STIGM4SSInvidia 2015+ Subaru WRX / STI Gemini/R400 Single Layer Quad Stainless Steel Tip Cat-Back Exhaust $1,069.07 SALE
|
 IN STOCK AWE Tuning Cat-Back Touring 3015-42104AWE Tuning Subaru STI VA / WRX GV / STI GV Sedan Touring Edition Exhaust - Chrome Silver Tip (102mm) $1,445.00
|
 $1,002.38 SALE
|
 IN STOCK AWE Tuning Cat-Back Touring 3015-43108AWE Tuning Subaru STI VA / WRX GV / STI GV Sedan Touring Edition Exhaust - Diamond Black Tip (102mm) $1,545.00
|
IN STOCK Injen Catback Exhaust SES1207TTInjen 15-20 Subaru STI Cat Back Exhaust w/ Quad Titanium Tips $1,213.76
|
 IN STOCK AWE Tuning Cat-Back Track 3020-42058AWE Tuning Subaru WRX/STI VA/GV Sedan Track Edition Exhaust - Chrome Silver Tips (102mm) $1,095.00
|
 IN STOCK CORSA Performance Cat-Back Sport 14857BLKCorsa 2015 Subaru WRX Cat Back Exhaust, Black Quad 3.5in Tips *Sport* $1,928.99
|
