MKHN0134

VY HSV V8 Sedan 2.5in Dual Catback Muffler/Tailpipe

VY HSV V8 Sedan 2.5in Dual Catback Muffler/Tailpipe (MKHN0134) Fits HOLDEN. Fast shipping, warranty included.

BrandMantaMPI Automotive

Category: Mufflers and resonators

RRP $1155.34 AUD
In stock at supplier
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VY HSV V8 Sedan 2.5in Dual Catback Muffler/Tailpipe product image

Part specs

SKU
MKHN0134
Supplier
MPI Automotive
Category
Mufflers and resonators
Vehicle fitment
Holden
Stock status
In stock at supplier

The MPI Automotive MKHN0134 is a 2.5in dual cat-back for the VY HSV V8 sedan, with a single muffler running into a tailpipe on each side. One silencing stage per pipe makes it the more open of the 2.5in dual layouts for the VY.

What does muffler-and-tailpipe change?

Each line carries one muffler and then runs the pipe out to the tail — a single silencing stage per side rather than a doubled muffler run. With fewer boxes in the path the note is less restrained than a twin-muffler build, while the single muffler per pipe still tempers it. On a dual layout that gives the V8 twin paths out with a more open character. We can't quote a volume figure; a comparable fit is the honest reference.

Why the 2.5in dual bore?

Two-and-a-half inches is the tighter pipe, holding gas speed up for low-down and mid-range response on a street V8. Run as a dual it splits into two pipes the length of the car, pairing twin exits with near-stock pipe size. It stays a cat-back, so the catalytic converter and front pipework are retained as the factory fitted them; only the section behind the cat is replaced.

Will it suit my VY HSV sedan?

It's listed to fit the VY HSV V8 sedan. The dual routing and hanger spacing 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 MKHN0134 in-house across the Illawarra. We hang both pipes on the car's mounts, check clearance to the floor and rear valance on each side, and join each muffler square to the front pipe and out to the tailpipe. 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

How is the MKHN0134 configured?
It's a dual cat-back with a single muffler into a tailpipe on each side — one silencing stage per pipe.
What bore is it?
It's 2.5in per pipe, holding gas speed up for low-down and mid-range response.
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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Send the vehicle make, model, year, engine, current issue, desired sound or performance goal, and clear photos of the existing exhaust where available.