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View partMBM123MF
Holden Commodore VP - S V8 IRS Sedan Dual 2 1/2in Centre Mufflers off Twin Cat
Holden Commodore VP - S V8 IRS Sedan Dual 2 1/2in Centre Mufflers off Twin Cat (MBM123MF) Fits a wide range.
BrandMantaMPI Automotive
Category: Mufflers and resonators
RRP $702.46 AUD
In stock at supplierAfterpay, Zip Pay & Zip Money available
Part specs
- SKU
- MBM123MF
- Supplier
- MPI Automotive
- Category
- Mufflers and resonators
- Stock status
- In stock at supplier
The MPI Automotive MBM123MF is a dual centre muffler section listed to fit the IRS Holden Commodore VP-S V8 sedan, running off the twin-cat setup. The twin-cat-back routing and IRS fitment are what set it apart.
What does 'off twin cat' mean here?
The defining detail on the MBM123MF is that it picks up off the twin-cat setup — the dual centre mufflers bolt to the back of the car's twin catalytic converters and carry the system rearward from there. It runs two chambered centre mufflers, one per pipe, quietening both banks of the V8 by absorption and reflection inside the body. Because it sits behind the cats, this part does not change the emissions hardware itself; it is the centre silencer section downstream of them, fitted into your existing pipework.
Why the IRS VP-S callout?
This is listed for the IRS Holden Commodore VP-S V8 sedan. Independent rear suspension changes the rear floorpan and what the exhaust routes around, and the twin-cat front end sets where this dual centre picks up, so the section is matched to that specific combination. Confirm your exact build, rear setup and cat arrangement with the workshop before ordering, since the listing describes the fit rather than guaranteeing it on every variant.
Is it road legal?
This part sits behind the twin catalytic converters and does not remove or alter them — it is a centre silencer section, not a cat-delete, so the factory emissions hardware stays in place upstream. The consideration is noise rather than emissions. Roadworthy noise limits still apply, so talk to the workshop about your full system before fitting.
What does fitting involve in the Illawarra?
Oak Flats Muffler Men fits dual centre mufflers in-house across the Illawarra. We mount both units off your twin-cat setup, check clearance to the IRS hardware and floor, and confirm the section lines up before booking you in.
Stocked and fitted by Oak Flats Muffler Men, the Illawarra exhaust and 4x4 specialist in Oak Flats, NSW.
Common questions
- Does the MBM123MF remove the catalytic converters?
- No — it picks up off the twin cats and carries the system rearward. The cats stay in place; this is the centre silencer section downstream of them.
- Will it fit my live-axle VP?
- No — it is listed for the IRS VP-S V8 sedan. Confirm your rear setup and cat arrangement with the workshop.
- Is this the whole exhaust?
- No, it is the dual centre muffler section only. It pairs with your front and rear pipework.
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.
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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.