SSMKHN0130

VY VZ HSV V8 SDN 2.5in Dual With Extractors Hotdog/Muffler

VY VZ HSV V8 SDN 2.5in Dual With Extractors Hotdog/Muffler.

BrandMantaMPI Automotive

Category: Extractors and headers

RRP $4534.23 AUD
In stock at supplier
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VY VZ HSV V8 SDN 2.5in Dual With Extractors Hotdog/Muffler product image

Part specs

SKU
SSMKHN0130
Supplier
MPI Automotive
Category
Extractors and headers
Vehicle fitment
Holden
Stock status
In stock at supplier

A hotdog rear silencer sets the MPI Automotive SSMKHN0130 apart — a 2.5in dual extractor-and-exhaust package listed to fit the VY-VZ V8 HSV sedan. The straight-through hotdog gives this four-door a freer, more vocal rear than a conventional muffler on the same dual run.

What's a hotdog and how does it sound?

A hotdog is a compact, straight-through resonator-style silencer rather than a baffled rear muffler. It takes the hard edge off the note without choking flow the way a heavier muffler can, so the SSMKHN0130 sits louder and freer than a muffler-each-side build on the same 2.5in dual, while staying more composed than running open. It suits an HSV owner who wants the V8 heard. No sound figure is published; this is a relative description.

Why the 2.5in dual sizing?

A 2.5in dual is the street-oriented sizing for these V8s — paired pipes hold gas speed up for low-down and mid-range response while flowing more than the factory single-bank plumbing. It's the sensible-bore choice for a road-driven sedan, here paired with the more vocal hotdog rear so the note opens up without going to a full open tail.

What's in the package?

It's a complete extractor-back system, not headers alone. Tube-and-merge extractors replace the cast factory manifolds at the heads — the main breathing restriction on these V8s — then a matched 2.5in dual runs back through the hotdog silencer. The change runs from the engine all the way to the tail, with the hotdog setting the rear voice. MPI Automotive lists no material or wall thickness in this record.

How do we confirm fit at the Illawarra workshop?

Oak Flats Muffler Men supplies and fits MPI extractor systems in-house across the Illawarra. The SSMKHN0130 is listed to fit the VY-VZ V8 HSV sedan; as a major-spend item we confirm your exact series and rear arrangement before ordering, and we'll talk through how the hotdog note compares to a muffled build. Send your build and we'll book the bay.

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

Common questions

Is the hotdog build louder than a muffled one?
Yes — the hotdog is a straight-through silencer, so the SSMKHN0130 is freer and louder than a muffler-each-side build, while still more controlled than running open.
Does it fit the VY-VZ HSV sedan specifically?
It's listed for the VY-VZ V8 HSV sedan. Confirm your exact series 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.