This 2in cat-back kit (HOLDEN-COMMODORE-VT-VY-V6-SEDAN-2-1-2-CATBACK-KIT-INC-2-X-EVERFLO-MUFFLER-HOTDOG) fits the Holden Commodore VT–VY V6 sedan and mixes Everflo mufflers with a hotdog. The muffler-and-hotdog combination is the point: chambered silencing paired with a free-flowing resonator.
Why mix Everflo mufflers with a hotdog?
This cat-back pairs Everflo muffler silencing with a hotdog — a compact straight-through resonator. The mufflers do the heavier chambered damping, while the hotdog tunes its part of the run without choking flow. Combining the two splits the silencing job and gives a different character to a kit that runs mufflers alone: some free-flowing resonance worked in alongside the boxed damping.
What's a 2in cat-back and what's in this kit?
A cat-back replaces the exhaust from the catalytic converter rearward, leaving the engine and the emissions hardware ahead of the cat untouched. On a 2in bore it suits the standard or lightly worked VT–VY six. Supplied by Exhaust Systems Australia, this is a kit — it includes the Everflo muffler and hotdog to complete the section in one package.
Will it suit my VT–VY V6 sedan?
It's listed to fit the Holden Commodore VT–VY V6 sedan, with the sedan floorpan setting the routing and hanger points. Confirm your exact build with the workshop before ordering so the muffler-and-hotdog section lines up with your car.
What does fitting involve at our Illawarra workshop?
Oak Flats Muffler Men supplies and fits cat-back kits like this in-house across the Illawarra. We join the kit to the cat flange, set the Everflo muffler and hotdog square in the run, and check clearance along the floor and tunnel so it sits without strain. Bring the car in and we'll confirm fitment and book the bay.
Stocked and fitted by Oak Flats Muffler Men, the Illawarra exhaust and 4x4 specialist in Oak Flats, NSW.
Common questions
What silencers does this kit use?
Everflo muffler silencing paired with a hotdog resonator.
What's a hotdog?
A compact straight-through resonator — freer-flowing than a chambered muffler.
Does it touch the catalytic converter?
No — a cat-back leaves the cat and everything ahead of it in place.
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.