Subaru OEM Piston Ring Set (Type RA) 99.50mm Subaru STI 2008-2021 | 12033AD440 Model3_2018-2022 Increasing the diameter of your

Increasing the diameter of your sway bars will have two main effects

Fits all Emotion series wheels except the CR Kai

reducing turbulence and promoting even airflow throughout the intake system

Optimized TPS Response Curve

For increased performance

Subaru OEM Piston Ring Set (Type RA) 99.50mm Subaru STI 2008-2021 | 12033AD440 Model3_2018-2022 Increasing the diameter of yourProduct Fitment: 2008 2021 Subaru STI This is a set of 4 replacement genuine Subaru OEM piston rings 99. 50mm for your Type RA pistons. Warranty Disclaimer: Subaru of America will only warranty parts installed by a CERTIFIED Subaru Dealership. The part being installed must also match the vehicle VIN. IE If you install an STi block in a WRX at your friends shop, do not expect a warranty claim to come through if it explodes! Please use your best