Clutch Masters .75in Bore Master Cylinder Upgrade Kit - Black Subaru WRX / STI 2015-2021 | MC15020-BK vendor_Stop Tech It is nearly four times

It is nearly four times the safety requirement needed for professional racing

No need to worry about a retune or anything else

Adapter wires used to convert a PSX24W or 5202-size socket into an H11-size socket

COBB Knob Height: 2

Clutch Masters .75in Bore Master Cylinder Upgrade Kit - Black Subaru WRX / STI 2015-2021 | MC15020-BK vendor_Stop Tech It is nearly four timesProduct 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