MKHN0138

VY V8 HSV Sedan 3in Dual Catback Hotdog/Muffler

VY V8 HSV Sedan 3in Dual Catback Hotdog/Muffler (MKHN0138) Fits HOLDEN. Fast shipping, warranty included.

BrandMantaMPI Automotive

Category: Mufflers and resonators

RRP $1460.57 AUD
In stock at supplier
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VY V8 HSV Sedan 3in Dual Catback Hotdog/Muffler product image

Part specs

SKU
MKHN0138
Supplier
MPI Automotive
Category
Mufflers and resonators
Vehicle fitment
Holden
Stock status
In stock at supplier

The MPI Automotive MKHN0138 is a 3in dual cat-back for the VY HSV V8 sedan, pairing a hotdog resonator with a rear muffler. Twin pipes on the larger bore, with the hotdog tuning out drone — the freer-breathing dual layout for the VY.

What does the hotdog add on a 3in dual?

A hotdog is a compact straight-through resonator: gas passes through a perforated core rather than around baffles, so it targets a drone frequency without choking flow. On the MKHN0138 a hotdog feeds the rear muffler in each line, taming mid-range resonance before the rear box sets the note. On a 3in dual that matters — the larger twin pipes flow freely, and the hotdog is what keeps them civil on the highway.

Why the 3in dual bore?

Three inches is the larger pipe option, and run as a dual it gives the V8 two of them — the freest-breathing arrangement here, suited to a worked or bigger-output engine. Combined with the hotdog-and-muffler pairing, it flows openly but still carries two silencing stages rather than running stripped. It stays a cat-back, so the catalytic converter and front pipework are retained. We can't quote a sound figure; a comparable fit is the honest reference.

Will it suit my VY HSV sedan?

It's listed to fit the VY HSV V8 sedan. The dual routing and hanger layout are particular to that body; confirm your exact build with the workshop before ordering.

How do we fit it at our Illawarra workshop?

Oak Flats Muffler Men supplies and fits the MKHN0138 in-house across the Illawarra. We set the hotdogs and rear mufflers on the car's hangers, check clearance to the floor and rear valance on each side, and join every stage square. Bring the car in and we'll confirm fitment and book the bay.

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

Common questions

What's the hotdog in the MKHN0138?
A compact straight-through resonator fitted ahead of the rear muffler in each line to cut drone without restricting flow.
What bore is it?
It's a 3in dual — the larger pipe option run as twin pipes, suited to a worked or bigger-breathing V8.
Does it keep the catalytic converter?
Yes — as a cat-back, the factory converter and front pipework stay in place.

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.