Subaru OEM Valve Bucket 4.76mm WRX 03-14 / STI 04-21 | 13228AB182 Vehicle Model_STi Digressive piston technology allows for

Digressive piston technology allows for stiff low-speed compression/rebound force

OEM-like fit and finish

engineered specifically for your Subaru's ECU

0-5 volt output signal for data logging This item is non application specific

Subaru OEM Valve Bucket 4.76mm WRX 03-14 / STI 04-21 | 13228AB182 Vehicle Model_STi Digressive piston technology allows forProduct Fitment: 2003 2014 Subaru WRX 2004 2021 STI These are the Bucket Shims that go between the camshaft and valve. There is one on top of each valve, so if you are replacing them all you would need a total of 16 buckets. Please note that the 2002 WRX only used a shim over bucket system, and those are different from these. Because these buckets are precisely measured, please double check your measurements before ordering. Each bucket comes in a