Xforce Stainless Steel UNPOLISHED E4 cat back exhaust system for Holden Commodore V6 ECHOTECH 1999-2005 & VZ ALLOYTECH
SEDAN
Also SUPER CHARGED MODELS 

VT 
VX
VY
VZ 

* NOTE VZ V6 from factory comes in two variations of Exhaust LAYOUT. 
1 is a TWIN pipe left and right from the CAT's 
2 is a SINGLE Pipe from the CAT's 

This advert is selling the TWIN pipe kit . 

This big bore twin 2.25" cat back exhaust system is a great upgrade to your V6 ECOTECH powered sedan. The system is mild steel with twin stainless tips on the rear muffler.
Has been tested in Australia to give best results in 2.25" Diam pipes as not to be too Droning on noise .