Much Improved Performance through race Inspired merge collectors optimizers engine performance and gas Flows.
Holden Commodore SS 1999-2005
VT (series 2 5700cc engine)
VZ (series 1 5700cc engine only)
VZ 6.0 Ltr HSV
NOT 4WD models
* Note - Xforce Headers and Cats do not fit factory Systems and are designed to fit Xforce Cat back kits only.
Metallic Cats 3.0" - 100 CPSI