GSC Exhaust Valve Guides Stopper Style - Subaru WRX 2002-2014 / STi 2004-2020 (+Multiple Subaru Fitments) Volkswagen-Golf-2012 The Racer X control arms

The Racer X control arms eliminate this by using light weight 4130 Chromoly tubing and chromoly rod ends

Made from an injection mold this product is nothing but high quality

25mm) = 10mm excess stud length

Vibration: 100 to 2000Hz

GSC Exhaust Valve Guides Stopper Style - Subaru WRX 2002-2014 / STi 2004-2020 (+Multiple Subaru Fitments) Volkswagen-Golf-2012 The Racer X control armsWhat 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 the industry