Quick view Details Perrin | sku: PSP-TAC-615RD Perrin Recirculating Blow off Valve - 2015+ WRX Compare
Quick view Details GFB | sku: gfbT9107 GFB Mach 2 TMS Recirculating Diverter Valve - Subaru WRX 2015+ Compare
Quick view Perrin | sku: PSP-TAC-615RD Perrin Recirculating Blow off Valve - 2015+ WRX Add horsepower, quicker response, and reliability with the PERRIN BOV. A must-have replacement for the leaky, slow responding, and plastic OEM blow off valve. ESSENTIAL FOR PROPER PERFORMANCE During testing, it was determined that until approximately 3... View Details Compare
Quick view GFB | sku: gfbT9107 GFB Mach 2 TMS Recirculating Diverter Valve - Subaru WRX 2015+ 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 GFB Respons TMS Adjustable BOV - 2015+ WRX The TMS range from GFB is designed specifically for the purpose of turbo lag reduction and improving throttle response. Tests show TMS features can help return the engine to peak boost up to 30% faster than a factory diverter valve when shifting gears... View Details Compare
