MKHN0305

Holden WK WL Statesman V8 3in Dual With 1 7/8 in Extractors Muffler

Holden WK WL Statesman V8 3in Dual With 1 7/8 in Extractors Muffler/Muffler.

BrandMantaMPI Automotive

Category: Extractors and headers

RRP $4893.86 AUD
In stock at supplier
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Holden WK WL Statesman V8 3in Dual With 1 7/8 in Extractors Muffler/Muffler product image

Part specs

SKU
MKHN0305
Supplier
MPI Automotive
Category
Extractors and headers
Vehicle fitment
Holden
Stock status
In stock at supplier

Pairing 1⅞in primaries with a dual 3in run, the MPI Automotive MKHN0305 is the higher-output extractor system listed across the Holden WK and WL Statesman V8. Twin mufflers finish the run, making this the big-primary, twin-silenced build in the family.

What does the 1⅞in primary and dual 3in suit?

Primary tube size is an application choice. The 1⅞in primaries on the MKHN0305 favour higher-rpm, higher-output V8 builds, where larger primaries keep top-end flow up rather than prioritising low-down gas speed. They merge into a dual 3in run — a generous pipe per bank — finished with two mufflers. That combination of big primaries, twin 3in pipes and double silencing is what defines this WK-WL Statesman part.

Why the twin-muffler layout?

The MKHN0305 runs a muffler-muffler arrangement — two mufflers in the run — for more silencing and a more settled note despite the larger primaries and bore. The extractors ahead of them replace the factory cast manifolds with tubular runners off each cylinder, a header set per bank. It is the breathing change at the head, paired here with a quieter-biased back half, working as part of the complete exhaust.

Will it suit my WK-WL Statesman V8?

The MKHN0305 is listed to fit the Holden WK and WL Statesman V8; confirm the exact build with the workshop before ordering. The 1⅞in primary and 3in figures define the part, and material is not published by the supplier, so construction is confirmed on order.

What does fitting involve at our Illawarra workshop?

Oak Flats Muffler Men fits 1⅞in dual extractor systems like the MKHN0305 in-house across the Illawarra. The job means dropping both factory manifolds, fresh gaskets, and routing twin 3in pipes with both mufflers under the Statesman. Supplied by MPI Automotive at $4,893.86 AUD; send your details and we will 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 primaries does the MKHN0305 use?
1⅞in primaries feeding a dual 3in run with two mufflers — the higher-output, twin-silenced option for the WK-WL Statesman V8.
Does it fit my WK or WL Statesman?
It is listed across the Holden WK and WL Statesman V8. Confirm your exact build 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.