Routed for the ute tray, this Exhaust Systems Australia twin 3in cat-back fits the Holden Commodore V8 ute (VT-VZ) and carries a Varex bi-modal rear muffler — a valved box that swaps between a quiet cruise and an open, louder note. It's a raw-finish 409 stainless special-order build.
Why the ute-specific routing?
A Commodore ute runs its rear exhaust under a tray and a different rear floor to the sedan, so the cat-back is shaped and hung for that body. This system is listed for the V8 ute specifically, which means the twin 3in pipework and the rear muffler position are set up to clear the ute's underbody rather than a sedan's boot floor.
How does the Varex rear muffler behave?
The Varex is a bi-modal, valved rear muffler. With the valve shut, exhaust takes the muffled route for a more subdued tone; with it open, gas diverts to a freer path for a louder, harder note. It gives the ute one system that can stay civil around town and open up when you want it, instead of a single fixed volume.
What's the cat-back scope and the 409 raw finish?
It's a cat-back in twin 3in, replacing the system behind the catalytic converter and leaving the cat in place. Construction is 409 stainless in a raw, unpolished finish — corrosion-resistant grade without a mirror polish. As a special-order item it's built to order, so allow for lead time.
Will it suit my VT-VZ ute, and how do we fit it?
It's listed to fit the V8 ute across VT to VZ. Oak Flats Muffler Men fits valved cat-backs like this in-house in the Illawarra, including the valve control wiring. Exhaust Systems Australia lists it at $1,599; confirm your exact build and the special-order lead time with us first.
Stocked and fitted by Oak Flats Muffler Men, the Illawarra exhaust and 4x4 specialist in Oak Flats, NSW.
Common questions
Is this exhaust shaped for the ute body?
Yes — it's listed for the V8 ute and routed for the ute's underbody and tray, not the sedan. Confirm your exact build with the workshop.
What does the Varex rear muffler change?
It's valved, so it switches between a quieter muffled mode and a louder open mode rather than running a single fixed volume.
Fitment support across the Illawarra
Fitment checks near you across 18 Illawarra suburbs, from Oak Flats and Shellharbour to Wollongong and Kiama.Show nearby fitment areasCollapse section
Oak Flats Muffler Men can check this part against supplier specs, part number, image, RRP and vehicle details for customers around Oak Flats, Shellharbour, Wollongong, Dapto, Albion Park, Kiama and the northern suburbs.
Send the vehicle make, model, year, engine, current issue, desired sound or performance goal, and clear photos of the existing exhaust where available.