SSMKHN0121

Holden Commodore VT - VZ V8 Sedan 3in Dual Catback Hotdog/Muffler

Holden Commodore VT - VZ V8 Sedan 3in Dual Catback Hotdog/Muffler (SSMKHN0121) Fits HOLDEN. Fast.

BrandMantaMPI Automotive

Category: Mufflers and resonators

RRP $2496.80 AUD
In stock at supplier
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Holden Commodore VT - VZ V8 Sedan 3in Dual Catback Hotdog/Muffler product image

Part specs

SKU
SSMKHN0121
Supplier
MPI Automotive
Category
Mufflers and resonators
Vehicle fitment
Holden
Stock status
In stock at supplier

The MPI Automotive SSMKHN0121 is a 3in dual cat-back for the Holden Commodore VT–VZ V8 sedan, pairing a hotdog with a muffler. The straight-through hotdog ahead of the box is its signature: it keeps the wide 3in dual run flowing while the muffler holds the note.

What does the hotdog do on a 3in dual?

A hotdog is a compact straight-through resonator — gas passes through a perforated core, so it trims drone without the restriction of a chamber. On the wider 3in dual run for the VT–VZ sedan it keeps flow up, with the muffler behind it settling peak volume so the V8 sounds present rather than wide open.

What does the dual cat-back cover?

It replaces the exhaust from the catalytic converter rearward in two pipes routed down the VT–VZ sedan floor, keeping the factory cat. This is the rear-half upgrade, so the emissions hardware ahead of the cat is left standard.

Will it suit my VT–VZ V8 sedan?

It is listed to fit the Holden Commodore VT to VZ V8 sedan; the supplier does not publish a year. We treat the listing as a guide and confirm the dual routing and hanger positions against your actual sedan before ordering.

Who fits it, and what does it cost?

Oak Flats Muffler Men supplies and fits this MPI Automotive cat-back across the Illawarra, lining up the hotdog and muffler and the dual run against your sedan before booking the bay. RRP is $2,496.80; as an MPI Automotive part it is ordered in.

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

Common questions

What is the hotdog for?
It is a compact straight-through resonator that cuts drone while keeping the dual run flowing; the muffler behind it settles the volume.
Does it keep the catalytic converter?
Yes — as a cat-back the factory cat stays in place.
Which sedans is it for?
The Holden Commodore VT to VZ V8 sedan. Confirm your exact build with the workshop before ordering.

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.