Spanning the VP through VS range on the IRS rear end is what marks this kit out: the HOLDEN-COMMODORE-VP-VS-2-1-2-IRS-CATBACK-KIT-INC-2-X-EVERFLO-MUFFLERS-REAR-DUAL- from Exhaust Systems Australia is a 2in cat-back with two Everflo mufflers and a rear dual outlet, listed across the independent-rear VP-VS Commodore.
What does this VP-VS cat-back cover?
Listed across the VP-VS Commodore on the IRS rear, this is a cat-back: it replaces the system from behind the catalytic converter back to the tail, leaving the front pipe untouched. The kit carries two Everflo mufflers to share the silencing and finishes through a rear dual outlet, all on a 2in body sized for the standard or lightly modified engine these models came with.
Why the twin-muffler, dual-outlet finish?
Running two Everflo silencers spreads the quietening across two boxes, and the dual outlet gives the back of the car a paired-pipe exit. A muffler works by absorbing and reflecting sound inside its body, so the pair shape the note while the twin outlet sets how the gas leaves at the tail. There's no published sound figure, so the honest test is to hear a comparable IRS Commodore fit before committing.
Will it suit my VP-VS Commodore?
It's listed to fit the Holden Commodore from VP through VS with the independent rear end. Because the routing keys to the IRS layout, confirm your exact model and rear-end type with the workshop before ordering — a live-axle car takes a different system.
How do we fit it at our Illawarra workshop?
Oak Flats Muffler Men supplies and fits this Everflo cat-back in-house across the Illawarra. We mount both mufflers, set the dual outlet level at the tail and check clearance around the IRS cradle. 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
Which models does this kit cover?
It's listed across the Holden Commodore VP through VS with the IRS rear end. Confirm your exact model with the workshop.
How many mufflers are included?
Two Everflo mufflers, plus a rear dual outlet to finish the system.
What bore is it?
It's built on a 2in body, suited to the standard or lightly modified engine.
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.