SSMKHN0113

Holden Commodore VT 5L Sedan 2.5in Dual With Extractors Hotdog/Muffler

Holden Commodore VT 5L Sedan 2.5in Dual With Extractors Hotdog/Muffler.

BrandMantaMPI Automotive

Category: Extractors and headers

RRP $4531.08 AUD
In stock at supplier
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Holden Commodore VT 5L Sedan 2.5in Dual With Extractors Hotdog/Muffler product image

Part specs

SKU
SSMKHN0113
Supplier
MPI Automotive
Category
Extractors and headers
Vehicle fitment
Holden
Stock status
In stock at supplier

The MPI Automotive SSMKHN0113 pairs a hotdog resonator with a rear muffler on a 2.5in dual layout for the 5L VT Commodore sedan. That two-stage silencing is its defining trait — a header-back system tuned to take the rasp off without going fully quiet.

What does the hotdog-and-muffler pairing do?

Rather than one muffler or two of the same, the SSMKHN0113 runs a hotdog resonator up front and a rear muffler behind it across its 2.5in dual pipework. The hotdog knocks down the harsher mid-range rasp a worked V8 makes, while the rear muffler handles the bulk of the silencing. The result on the 5L VT is a cleaner tone than a single-muffler build without the drone of a fully boxed-in twin-muffler setup.

What's covered in the package?

It's a header-back system for the 5L VT sedan: tuned-length extractors at the cylinder heads, dual 2.5in pipework, the hotdog resonator and the rear muffler. The factory cast manifolds and the original exhaust both come out and the SSMKHN0113 goes in as one matched set, with primaries sized to the 2.5in legs so the whole run flows together.

What's an extractor and why change the manifolds?

Extractors are tuned-length headers that replace the restrictive cast manifolds the VT's 5L left the factory with. Each cylinder gets its own primary tube before the merge, cutting back-pressure and helping the engine scavenge spent gas. Honestly stated, they sit in the engine-bay heat zone, take real labour to fit, and change the note — here softened and tidied by the hotdog-plus-muffler combination rather than left raw.

Will it suit my VT, and what's the fitting like?

It's listed to fit the 5L VT Commodore sedan; send your build and Oak Flats Muffler Men will confirm it before ordering. Fitting at our Illawarra workshop means removing the factory manifolds, hanging the extractors, then routing the dual 2.5in pipework through the hotdog and rear muffler with clearance checks underneath. At an RRP of $4,531.08 it's a special-order set, so we confirm fitment and lead time first.

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

Common questions

What's the point of the hotdog resonator?
The hotdog sits ahead of the rear muffler and tames the harsher mid-range rasp, while the muffler does the main silencing. Together they give a cleaner tone than a single muffler without going fully quiet.
Will the SSMKHN0113 fit my VT Commodore?
It's listed to fit the 5L VT Commodore sedan. Confirm your exact build with the workshop before ordering, as extractor systems are tied to the specific body and driveline.
Is this the full system or just the headers?
It's a header-back system: extractors plus dual 2.5in pipework, a hotdog resonator and a rear muffler, supplied as one matched SSMKHN0113 kit.

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.