GSC Power-Division Intake Valve Guides Stopper Style 2002-2014 WRX / 2004-2021 STI Subaru Turbo Models vendor_MBRP Increases Horsepower and Torque

Increases Horsepower and Torque

Height adjuster

Part #: DP3966C

Castrol Syntorq LT

Truhart Rear Adjustable Toe Control Arms 2013+ Subaru BRZ / Scion FR-S

GSC Power-Division Intake Valve Guides Stopper Style 2002-2014 WRX / 2004-2021 STI Subaru Turbo Models vendor_MBRP Increases Horsepower and TorquePart #: 3026 8 What they have done is actually quite simple, they made valve guides that fit properly, are easier to install, and shaped to help air flow instead of just copying the OEM design. The GSC Power Division valve guides are made from true C67410 Manganese Bronze and turned on a dedicated precision CNC turning center. What this means for you and your installer is less time fitting guides to the head due to holding the tightest tolerances in