BC Brian Crower Valve Guides for EJ20/EJ25 WRX STi (BC3960/BC3961) Select::Set of 8 Intake Valve Guides To maintain proper tolerances and

To maintain proper tolerances and ensure optimal performance

Genuine OEM Subaru factory replacement clutch disc for 2018-2022+ Subaru WRX manual transmission models

Mercedes Benz NAG-2

(2) MF241254

StopTech Sport brake pads for the Subaru STi models are ideal for autocross and light track day use

BC Brian Crower Valve Guides for EJ20/EJ25 WRX STi (BC3960/BC3961) Select::Set of 8 Intake Valve Guides To maintain proper tolerances andValve guides are essential components that wear over time, particularly in high revving EJ20 and EJ25 engines. To maintain proper tolerances and optimal performance, it's advisable to replace worn guides with new aftermarket ones. BC premium valve guides, made from Manganese Silicon Aluminum Bronze alloy, are CNC machined to precise tolerances. These guides resist cracking and corrosion, reduce friction, and ensure high lubrication even at elevated