GSC Power-Division Stopper-Style Exhaust Valve Guide for Mitsubishi 4B11T (gsc3013-8) _8V0698151G Reduces Chassis Deflection - Maintains

Reduces Chassis Deflection - Maintains chassis rigidity vs not running a bumper beam [Bar not intended to be a substitute for the OEM crash protection]

There is no better designed and engineered race header system for the Porsche 997 GT3/GT3RS available worldwide

Use of Motul Gear 300LS 75W-90 oil is recommended

Robust construction ensures reliable performance under high pressure and temperature conditions

Includes dual custom heat shields designed specifically for this application

GSC Power-Division Stopper-Style Exhaust Valve Guide for Mitsubishi 4B11T (gsc3013-8) _8V0698151G Reduces Chassis Deflection - MaintainsGSC 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