GSC Power-Division Single Exhaust Valve Guide (STD) Set of 12 (gsc3031-12) 17195 Manufactured with over 15 years

Manufactured with over 15 years of carbon fiber expertise

VEHICLE APPLICATIONS

making them the best upgrade for street driving and emissions compliance

Over 25 years of continual development refinement results in the world's very best systemfor the 996 community

Incredible increase is sports car sound and turbo spool sound

GSC Power-Division Single Exhaust Valve Guide (STD) Set of 12 (gsc3031-12) 17195 Manufactured with over 15 yearsGSC has quite simply made a series of 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 with the best quality