HOLDEN COMMODORE VS V6 SEDAN IRS 2 1/2" CENTRE MUFFLER MEGA FLOW for Performance Car - Holden.
Category: Mufflers and resonators
The IRS rear end is what sets this one apart: the Mega Flow M4945 (HOLDEN-COMMODORE-VS-V6-SEDAN-IRS-2-1-2-CENTRE-MUFFLER-MEGA-FLOW-M4945) from Exhaust Systems Australia is a 2in centre muffler cut for the independent-rear VS V6 sedan. The IRS subframe changes how the mid-section routes, so the centre box is shaped to suit it.
Not every VS sedan ran the same rear end — the IRS (independent rear suspension) cars carry a subframe and rear geometry that the live-axle cars don't, and that changes the room the exhaust has through the middle of the car. The M4945 is the centre muffler shaped for the IRS sedan, built on a 2in body to match the standard or lightly modified V6. Get the IRS-correct box and the mid-section lines up and clears the subframe as it should.
Sitting in the middle of the run, the M4945 absorbs and reflects sound inside its body to settle mid-range tone and the drone a six can push up through the cabin floor. It shapes the centre of the note rather than the final tailpipe sound. There's no published sound figure, so the honest test is to hear a comparable VS fit before committing.
It's listed to fit the Holden Commodore VS V6 sedan with IRS. Because the live-axle cars route differently through the back, confirm with the workshop that yours is the IRS car before ordering — fitting the right centre box for your rear end is the whole point of this part.
Oak Flats Muffler Men supplies and fits the M4945 in-house across the Illawarra. We hang it on the IRS sedan's mid-section mounts, check clearance around the subframe and floor, and join it square to the pipe either side. 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.
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.
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View partSend the vehicle make, model, year, engine, current issue, desired sound or performance goal, and clear photos of the existing exhaust where available.
