XForce Twin 2.5" Cat-Back System — VT-VZ Commodore SS
The louder of the twin 2.5" options for the LS1 Commodore. Two straight-through centre mufflers do the flowing, while hot dog resonators at the rear take the hard edge off without muffling the thing back into silence — a proper V8 bark that still settles down at cruise.
Twin 2.5" pipework in raw 409 stainless, finished with twin 3" tips.
Specifications
| Fits | Holden VT–VZ Commodore SS 5.7L LS1 Sedan, 1997–2006 |
| Part No. | E4-HV20-2-CBS |
| Pipe size | Twin 2.5" |
| Centre | Two straight-through mufflers |
| Rear | Twin hot dog resonators |
| Tips | Twin 3" |
| Material | Raw 409 stainless steel |
