Manley Mitsubishi 4B11T 16pc Valve Springs OutbackXT_2020-2023 you can really fine tune

you can really fine tune your car to your driving style

contributing to improved power

2015-2025 Subaru WRX

Part #: ficIS144-1650H

Manley Mitsubishi 4B11T 16pc Valve Springs OutbackXT_2020-2023 you can really fine tunePart #: 22195 16 Manley Performance valve springs are specifically designed to withstand the rigors of todays aftermarket Sport Compact camshafts and properly control the valve train in these high revving Sport Compact engine applications. This means utilizing only the best, super clean chrome silicon high tensile strength steel alloy and performing classified heat treatment and shot peen processing to insure the ultimate fatigue life and limit load