GSC Intake Valve Guide Set With Depth Stopper - Subaru WRX VA FK8 Bushings This is a glycol-based fluid

This is a glycol-based fluid which is great for absorbing moisture to avoid water building into the system

beehive valve springs are recommended but not required

Improved pedal feel from initial pressure through entire pedal stroke

or up to 100hp NO2

Drilled & Slotted for increased bite

GSC Intake Valve Guide Set With Depth Stopper - Subaru WRX VA FK8 Bushings This is a glycol-based fluidGSC Power Division makes valve guides that fit properly, easier to install and shaped to help air flow instead of just copying the OEM design. GSC's valve guides are made from true C67410 Manganese Bronze and turned on a dedicated precision CNC turning center creating some of the tightest tolerances in the industry with the best quality control possible. Fits: FA20 DIT 2015 19 WRX FA20 2013 15 BRZ & Scion FR S