MKHN0302

Holden WK WL S/MAN V8 2.5in Dual Catback Muffler

Holden WK WL S/MAN V8 2.5in Dual Catback Muffler/Muffler (SKU: MKHN0302) Engineered. Quality guaranteed.

BrandMantaMPI Automotive

Category: Mufflers and resonators

RRP $1267.92 AUD
In stock at supplier
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Holden WK WL S/MAN V8 2.5in Dual Catback Muffler/Muffler product image

Part specs

SKU
MKHN0302
Supplier
MPI Automotive
Category
Mufflers and resonators
Vehicle fitment
Holden
Stock status
In stock at supplier

A chambered muffler on each pipe is what defines the MPI Automotive MKHN0302: a 2.5in dual cat-back for the Holden WK/WL Statesman V8 that runs absorptive mufflers on both sides for the most composed tone in this dual range.

What does running a muffler on each side do?

Both pipes pass through a chambered muffler, so each path is quietened by reflection and absorption rather than left to flow freely. The MKHN0302 has no compact straight-through element anywhere in the run, which is what gives it the most restrained note of the dual builds. It suits a Statesman V8 owner who wants the symmetry of a true twin layout but a measured, civil exhaust note to go with the long-wheelbase cruiser character.

Who is the 2.5in dual sizing for?

It runs two parallel 2.5in pipes rearward from the cat, a bore chosen to keep gas speed up across the twin path on a heavy WK/WL Statesman. The dual layout mirrors flow down both sides of the floor, which matches the V8's twin-outlet character without reaching for the largest pipe on the shelf. The supplier lists the V8 fitment but not exact production years, so we confirm your variant before ordering.

Does it affect road compliance?

As a cat-back, the MKHN0302 sits behind the catalytic converter and leaves the factory emissions hardware untouched. Road compliance then comes down to noise limits and your state's rules, so confirm the exact build and any NSW requirements with the workshop before fitting.

How does fitting work at our Illawarra workshop?

Oak Flats Muffler Men supplies and fits the MKHN0302 in-house across the Illawarra. We hoist the car, line up both 2.5in paths and seat the twin mufflers for clearance under the floor as the system goes up. It's listed to fit the Holden WK/WL Statesman V8 — send your build and we'll confirm fitment and book a bay.

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

Common questions

What makes the MKHN0302 the quieter dual choice?
It carries a chambered muffler on each side with no straight-through element, so both pipes are absorbed and reflected for the most composed note in the range.
What bore is this set?
It's a 2.5in dual cat-back — two 2.5in pipes for the Holden WK/WL Statesman V8.
Does it keep the catalytic converter?
Yes. As a cat-back it sits behind the cat, so the factory catalytic converter stays 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.