IAG Competition Series Pitch Mount Bushing Kit 90A Durometer - Subaru STI 04-18, WRX 02-18 WRX/STI Up Pipe WHAT IS FREE-AIR CALIBRATION

WHAT IS FREE-AIR CALIBRATION

Sold as a set of 16

you are looking at the PERRIN Performance Coolant Overflow Tank

The case halves are then CNC machined for our new Fire-Lock head gasket solution that is loosely derived from diesel technology where a counterbore step is machined around each cylinder bore allowing specially sized fire rings to drop into the machined area and head gasket bores

563 in (217 mm)

IAG Competition Series Pitch Mount Bushing Kit 90A Durometer - Subaru STI 04-18, WRX 02-18 WRX/STI Up Pipe WHAT IS FREE-AIR CALIBRATIONIAGs Competition Series Pitch Mount Bushing Kit is designed specifically for our CNC pitch mount. Our pitch mount is specifically designed with the ability to swap bushings for street or track use. The Competition Series kit includes (x2) 90A durometer bushings that are stiffer than our 75A Street Series Bushings. The 90A durometer bushings help to greatly reduce the forward and backward movement of the transmission and engine under hard acceleration.