Clutch Masters .75in Bore Master Cylinder Upgrade Kit - Black Subaru WRX / STI 2015-2021 | MC15020-BK Wheel Offset_22mm Oil Cooler Integrated Thermostat: No

Oil Cooler Integrated Thermostat: No

but shifting is faster

PRL Motorsports oiled filters utilize double-layer woven cotton with deep

tuned and dyno-tested to fit select Infiniti Q50 models

High-Strength Forged AluminumBuilt to handle increased cylinder pressure and aggressive tuning

Clutch Masters .75in Bore Master Cylinder Upgrade Kit - Black Subaru WRX / STI 2015-2021 | MC15020-BK Wheel Offset_22mm Oil Cooler Integrated Thermostat: NoProduct Fitment: 2015 2021 Subaru WRX (USDM LHD) 2015 2021 Subaru STI (USDM LHD) Clutch Masters master cylinder upgrade for 2015 2021 WRX STi models. The OEM unit is usually good enough, but upgrading it will make your hydraulic system able to handle more aggressive driving. This kit also deletes the delay valve allowing you to shift quickly and let the clutch immediately engage. This is a complete plug and play kit and includes everything you need to