SSMBM462MF

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

Holden Commodore VN VP VQ VR VS V8 Sedan 3in Centre Muffler for selected vehicle applications.

BrandMantaMPI Automotive

Category: Mufflers and resonators

RRP $744.49 AUD
In stock at supplier
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Holden Commodore VN VP VQ VR VS V8 Sedan 3in Centre Muffler product image

Part specs

SKU
SSMBM462MF
Supplier
MPI Automotive
Category
Mufflers and resonators
Stock status
In stock at supplier

The MPI Automotive SSMBM462MF is the centre muffler for the VN-VS Commodore V8 sedan — the mid-system silencer that does the heavy lifting on drone before the gas reaches the back of the car. It's a 3in unit, sized for a worked or free-breathing V8 rather than a stock setup.

What does a centre muffler do?

A centre muffler sits in the middle of the system, ahead of the rear silencer, and is where a lot of low-frequency drone gets knocked down before it can resonate through the floorpan. On the older VN-VS Commodore sedan, getting this section right is the difference between a V8 that's pleasant on a long drive and one that booms at cruise. It quietens by absorption and reflection through its chambers while keeping the 3in path open.

Why a 3in bore on these Commodores?

At 3in this centre muffler is built for a V8 that's been opened up — a bigger-bore system that wants flow rather than the restriction of a stock pipe. Larger bore suits a modified or free-flowing engine; it's the wrong call for a stock daily that needs nothing more than the factory size. MPI Automotive lists it specifically for the sedan body, which routes differently from the ute and wagon under the floor.

Does it fit my VN-VS sedan?

It's listed to fit the Holden Commodore VN, VP, VQ, VR and VS V8 sedan. These cars have detail differences across the series, so confirm your exact model and the rest of your 3in system with the workshop before ordering.

What's involved in fitting it?

Oak Flats Muffler Men fits centre mufflers like this in-house in the Illawarra. We check it mates cleanly to your existing pipe diameter, hangs square under the floor, and clears the tunnel and crossmember.

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

Common questions

Is this the rear or centre muffler?
It's the centre (mid-system) muffler — it sits ahead of the rear silencer and handles drone in the middle of the car.
Will the SSMBM462MF suit a stock 5.0L?
At 3in it's sized for a worked or free-flowing V8. For a strictly stock car the factory size is usually the better match — talk it through with the workshop.
Does it fit the ute or wagon?
No — this one is listed for the VN-VS V8 sedan. The ute and wagon route differently and use different parts.

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