SSMBM466MF

Holden Commodore VP VQ VR VS V8 Sedan IRS 3in Centre Muffler

MPI Automotive Holden Commodore VP VQ VR VS V8 Sedan IRS 3in Centre Muffler.

BrandMantaMPI Automotive

Category: Mufflers and resonators

RRP $867.58 AUD
In stock at supplier
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Holden Commodore VP VQ VR VS V8 Sedan IRS 3in Centre Muffler product image

Part specs

SKU
SSMBM466MF
Supplier
MPI Automotive
Category
Mufflers and resonators
Stock status
In stock at supplier

The SSMBM466MF is a 3in centre muffler for the IRS-equipped Holden Commodore VP/VQ/VR/VS V8 sedan — a single centre-section unit built around the independent rear suspension floorpan of those models.

Why does IRS change the centre muffler?

The independent-rear-suspension VP–VS sedans route the exhaust differently to the live-axle cars, with less room around the diff and subframe. This centre muffler is built for that IRS packaging, so the 3in body and pipe clear the subframe and hangers where a live-axle part wouldn't sit right.

What does a centre muffler do here?

A centre muffler sits mid-system and uses chambers to quieten the V8 before the gas reaches the rear. On these VP–VS sedans it's the main silencing element in the middle of the run, knocking back resonance while the 3in bore keeps the V8 flowing rather than choking it.

Which models does it suit?

It's listed to fit the Holden Commodore VP, VQ, VR and VS V8 sedan with IRS. The VQ badge here covers the Statesman/Caprice of that generation, so the part spans the sportier sedans and the long-wheelbase cars that ran the same independent rear. Confirm your exact model and that you have the IRS rear with the workshop before ordering.

What's the fitting process at Oak Flats?

Oak Flats Muffler Men supplies and fits the MPI Automotive SSMBM466MF in-house across the Illawarra. As a centre-section item we mock it on the hoist, confirm it clears the IRS subframe and tailshaft, check the hangers line up, and weld or clamp it in. It's a single mid-system unit, so it's a straightforward swap once the car is up. Send your model and we'll confirm fit.

Stocked and fitted by Oak Flats Muffler Men, the Illawarra exhaust and 4x4 specialist in Oak Flats, NSW.

Common questions

Is the SSMBM466MF for IRS or live-axle cars?
It's listed for the IRS VP/VQ/VR/VS V8 sedan, whose centre routing differs from live-axle cars. Confirm your rear setup with the workshop before ordering.
Is this a centre or rear muffler?
A centre muffler — it sits mid-system as the main silencer on these sedans, not at the tailpipe.

Fitment support across the Illawarra

Fitment checks near you across 18 Illawarra suburbs, from Oak Flats and Shellharbour to Wollongong and Kiama.
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Book the right exhaust job without guessing.

Send the vehicle make, model, year, engine, current issue, desired sound or performance goal, and clear photos of the existing exhaust where available.