Go Fast Bits GFB 15+ Subaru WRX 2.0L (FA20DIT) AWD Sedan TMS Respons Blow Off Valve Kit - T9007 $332.00 $298.80 If cars like yours typically suffer issues such as backfiring and stalling when using a fixed-ratio atmosphere-venting BOV, the Respons can help. By adjusting the venting bias to suit the car you can achieve a blow-off sound without having to put up with... Add to Cart
Go Fast Bits GFB 02-07 WRX / 04-10 STI TMS Respons Blow Off Valve Kit - T9003 $332.00 $298.80 If cars like yours typically suffer issues such as backfiring and stalling when using a fixed-ratio atmosphere-venting BOV, the Respons can help. By adjusting the venting bias to suit the car you can achieve a blow-off sound without having to put up with... Add to Cart
Go Fast Bits GFB 08-10+ WRX / 05-09 LGT TMS Respons Blow Off Valve Kit - T9001 $332.00 $298.80 If cars like yours typically suffer issues such as backfiring and stalling when using a fixed-ratio atmosphere-venting BOV, the Respons can help. By adjusting the venting bias to suit the car you can achieve a blow-off sound without having to put up with... Add to Cart