Quick view Details Perrin | sku: PSPEXT349BR Perrin Catback Exhaust (Resonated) - 2015+ WRX/STI Compare
Quick view Details Perrin | sku: PSP-EXT-349BR Perrin Catback Exhaust (Non-Resonated) - 2015+ WRX/STI Compare
Quick view Details CUSCO | sku: 694 541 A Cusco Rear Strut Tower Brace Type OS - 2015+ WRX/STI Compare
Quick view Details CUSCO | sku: 6A1 540 A Cusco Front Strut Tower Brace Type OS - 2015+ WRX/STI Compare
Quick view Details Perrin | sku: PSP-ITR-437-1BK Perrin Front Mount Intercooler - 2015+ STI (Black Core) Compare
Quick view Perrin | sku: PSP-INT-110 Perrin Panel Air Filter - 2015+ WRX/STI Don’t let a flimsy paper filter get between you and true performance.The PERRIN Performance™ dual stage, “Open Cell” foam, drop-in Panel Filter is the answer. A stealthy approach to higher air flow. Increases in horsepower are a... View Details Compare
Quick view GFB | sku: 5933 GFB Mach 2 Atmosphere Conversion Kit - 2015+ STI If you've purchased T9103 or T9133 and want to upgrade it to a vent to atmosphere BOV, here's the kit you need. Comes with a trumpet, spring, and plug. View Details Compare
Quick view GFB | sku: T9103 GFB Mach 2 TMS Recirculation Diverter Valve - 2015+ STI Here's the simple and essential mod for 30% quicker boost by utilizing proven TMS technology to ensure dependable boost holding and optimum throttle response. If you don't need the patented venting bias adjustment feature of the Respons or Deceptor Pro,... View Details Compare
Quick view GFB | sku: T9003 GFB Response TMS Adjustable BOV - 2015+ STI Atmosphere venting BOV won’t work on your car? Try a GFB Respons – you’ll be surprised! JUST ANOTHER DUAL-PORT BOV? On the surface it may look like just another dual-port blow-off valve,but the Respons is actually much more than that... View Details Compare
Quick view Perrin | sku: PSPEXT349BR Perrin Catback Exhaust (Resonated) - 2015+ WRX/STI The 2015 WRX exhaust is extremely quiet in stock form, so we had to create a louder exhaust. We filled this gap with our non-resonated cat-back exhaust. It is mellow, yet aggressive on the 2015 WRX, but much louder on the 2011-2014 WRX and 2011-2015 STI... View Details Compare
Quick view Perrin | sku: PSP-EXT-349BR Perrin Catback Exhaust (Non-Resonated) - 2015+ WRX/STI The 2015 WRX exhaust is extremely quiet in stock form, so we had to create a louder exhaust. We filled this gap with our non-resonated cat-back exhaust. It is mellow, yet aggressive on the 2015 WRX, but much louder on the 2011-2014 WRX and 2011-2015 STI... View Details Compare
Quick view CUSCO | sku: 6A1 541 AX Cusco Rear Cross Brace Type OS - 2015+ WRX/STI This Cusco Rear Cross bar is an extra chassis brace that a car could always use. The 4 point bolt in brace is fitted in the trunk and adds rigidity within the chassis. An increase in response can be hand with this bar and only basic hand tools are... View Details Compare
Quick view CUSCO | sku: 694 541 A Cusco Rear Strut Tower Brace Type OS - 2015+ WRX/STI The most popular of the Cusco bars is the Type OS. The classic design features a tubular aluminum oval shaft with a high polish finish. The ends are painted traditional Cusco blue. All necessary hardware is included. View Details Compare
Quick view CUSCO | sku: 6A1 540 A Cusco Front Strut Tower Brace Type OS - 2015+ WRX/STI The most popular of the Cusco bars is the Type OS. The classic design features a tubular aluminum oval shaft with a high polish finish. The ends are painted traditional Cusco blue. All necessary hardware is included. View Details Compare
Quick view CUSCO | sku: 6A1 61N CN Cusco Street Zero-A Coilover - 2015+ WRX/STI Cusco Coilovers - Street Zero A: The Cusco Street Zero A coilover system is great for the every day automotive enthusiast looking for a suspension kit that offers great street manners at an affordable price. This system features a unique 40-way dampening... View Details Compare
Quick view CUSCO | sku: 6A1 61P CN Cusco Street Zero Coilover - 2015+ WRX/STI The STREET ZERO series suspension coilover system is designed to provide a lowered vehicle ride height while maintaining comfort for daily driven street cars. The entire system is designed as an entry-level street coilover where the budget-minded... View Details Compare
Quick view Perrin | sku: PSP-ITR-437-1BK Perrin Front Mount Intercooler - 2015+ STI (Black Core) PERRIN PERFORMANCE FMIC FOR THE 2015+ STI Swap out your overheated factory top mount intercooler for the PERRIN Front Mount Intercooler to get the most out of your turbocharged STI. Add power and a new bold look all in one. INTERCOOLER... View Details Compare
