Built with no rear muffler at all, this Exhaust Systems Australia twin 2in cat-back for the Holden ute (VT-VZ) runs straight to a twin-pipe rear exit in 409 stainless — the loudest, most free-flowing layout in the family. It's a special-order item.
What does a no-muffler rear mean for this system?
With no rear muffler, the twin 2in pipework runs straight out to a twin-pipe exit, so nothing at the tail is absorbing sound — this is the open, free-flowing choice. Expect a louder, harder note than any muffled or resonated version; owners pick it when they want maximum flow and volume out the back rather than refinement.
What's the cat-back scope and bore?
It's a cat-back in a twin 2in layout, replacing the system from behind the catalytic converter to the twin-pipe rear. The 2in bore is the size the supplier lists for this build. The catalytic converter and the hardware ahead of it stay in place, so this is a rear-system change for the ute, not an engine-back one.
Why 409 stainless and special order?
Construction is 409 stainless — a corrosion-resistant grade that holds up well under a ute that sees load and weather. As a special-order item it's built to order, so confirm lead time with the workshop before committing.
Will it suit my VT-VZ ute, and how do we fit it?
It's listed to fit the Holden ute across VT to VZ. Oak Flats Muffler Men fits twin-pipe cat-backs like this in-house in the Illawarra, setting the rear exit and clearances for the tray. Exhaust Systems Australia lists it at $895; because a no-muffler rear is loud, talk the note through with us and confirm the special-order lead time first.
Stocked and fitted by Oak Flats Muffler Men, the Illawarra exhaust and 4x4 specialist in Oak Flats, NSW.
Common questions
Is there any muffler in this system?
No — the rear runs straight to a twin-pipe exit with no rear muffler, so it's the loudest, most free-flowing option in the family.
What bore is it?
It's a twin 2in cat-back, the size the supplier lists. Confirm your build and the rear exit you want with the workshop.
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.