GSC Power-Division Intake Valve Guides OEM Style 2002-2014 WRX / 2004-2021 STI YMM_2025_Crosstrek Maintain optimal engine performance with

Maintain optimal engine performance with the Subaru OEM Front Oxygen Sensor for the 2008 WRX

an alignment check is recommended after installation to ensure proper suspension geometry

These “B-tubes” are carefully formed and then brazed over the seam to seal

it delivers enhanced shift smoothness and durability for enthusiasts seeking improved transmission feel and OEM+ quality

GSC Power-Division Intake Valve Guides OEM Style 2002-2014 WRX / 2004-2021 STI YMM_2025_Crosstrek Maintain optimal engine performance withGSC Power Division Intake Valve Guides OEM Style 2002 2014 WRX 2004 2021 STI Precision Fit & Airflow Enhancement Maintenance Parts Overview The GSC Power Division Intake Valve Guides are high quality replacement components designed specifically for Subaru WRX and STI models from 2002 to 2014 and 2004 to 2021, respectively. These guides play a crucial role in maintaining optimal engine performance by ensuring proper airflow and valve operation. Built