TurboXS Hybrid 50/50 Blow off Valve WRX (2002-2007) STI (2004-2018) Speedwell Wheels oiled OE replacement performance filter

oiled OE replacement performance filter will out flow stock paper filter for improved horsepower and torque

such as E85

Deeper Tone

and ending in a 3" inner diameter N1 style muffler with a titanium tip

Under racing conditions

TurboXS Hybrid 50/50 Blow off Valve WRX (2002-2007) STI (2004-2018) Speedwell Wheels oiled OE replacement performance filterThe TurboXS Hybrid 50 50 blow off valve for the Subaru WRX STI is designed for those that want that great blow off sound without out the potential issues of going with a fully venting unit. Each time the throttle plate closes this valve will recirculate half of the boost while treating you and anyone within earshot to that trademark turbo sound. Included with the kit are a gasket, washers to increase spring tension, and necessary hoses for easy