What's the difference with the 1-7/8in primaries?

Larger primary tube biases the extractors toward higher-rpm flow on the WH Statesman V8, rather than maximum low-down response.

What's the hotdog for?

It's a straight-through resonator in the 3in dual run that reduces drone ahead of the rear muffler.

Do you fit these in the Illawarra?

Yes — Oak Flats Muffler Men supplies and fits this system in-house once your exact Statesman build is confirmed.

SSMKHN0296

Holden WH Statesman V8 3in Dual With 1 7/8 in Extractors Hotdog/Muffler

MPI Automotive Holden WH Statesman V8 3in Dual With 1 7/8 in Extractors Hotdog/Muffler.

BrandMantaMPI Automotive

Category: Extractors and headers

RRP $5499.20 AUD

In stock at supplier

Request fitted quote Call the workshop

Afterpay, Zip Pay & Zip Money available

Holden WH Statesman V8 3in Dual With 1 7/8 in Extractors Hotdog/Muffler product image

Part specs

SKU: SSMKHN0296
Supplier: MPI Automotive
Category: Extractors and headers
Vehicle fitment: Holden
Stock status: In stock at supplier

Built around 1-7/8in primary tubing, the MPI Automotive SSMKHN0296 is the larger-bore extractor option for the Holden WH Statesman V8, feeding a 3in dual exhaust with a hotdog resonator and rear muffler. The 1-7/8in primaries are the headline here — they favour the upper rev range over low-down snap.

What do 1-7/8in primaries suit?

Bigger primary tube lets more gas flow at higher rpm, so 1-7/8in extractors suit a WH Statesman V8 that's been worked or is driven hard up top, rather than a stock low-rpm cruiser. It's an application choice, not a free upgrade — the trade is a little low-speed gas velocity for more room to breathe higher in the range.

How is the 3in dual silenced?

Behind the extractors runs a 3in dual system using a hotdog (a straight-through resonator) plus a rear muffler. The hotdog takes the edge off the drone while the muffler does the main quietening, so the big-bore note stays present without being raucous on the road.

Why size up to 3in here?

A 3in dual pipe matches the larger 1-7/8in primaries — there's little point opening the head only to neck the system down behind it. On a long heavy car like the Statesman it gives the V8 a clear path from the flange to the tailpipe.

What does fitting involve at our workshop?

Oak Flats Muffler Men in the Illawarra supplies and fits this as a complete head-back package. It's listed to fit the WH Statesman V8; send your build and we'll confirm clearances and hanger points before the bay booking.

How is it supplied and ordered?

This is a build-specific MPI Automotive package rather than a shelf item, so we order it against your confirmed WH Statesman details. Going larger on both primaries and pipe is a deliberate spec choice; we talk through whether the 1-7/8in route suits how the car is driven before committing the order.

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

Common questions

What's the difference with the 1-7/8in primaries?: Larger primary tube biases the extractors toward higher-rpm flow on the WH Statesman V8, rather than maximum low-down response.
What's the hotdog for?: It's a straight-through resonator in the 3in dual run that reduces drone ahead of the rear muffler.
Do you fit these in the Illawarra?: Yes — Oak Flats Muffler Men supplies and fits this system in-house once your exact Statesman build is confirmed.

Fitment support across the Illawarra

Fitment checks near you across 18 Illawarra suburbs, from Oak Flats and Shellharbour to Wollongong and Kiama.Show nearby fitment areasCollapse section

Oak Flats Muffler Men can check this part against supplier specs, part number, image, RRP and vehicle details for customers around Oak Flats, Shellharbour, Wollongong, Dapto, Albion Park, Kiama and the northern suburbs.

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.

Unit 2/8 Shaban St, Albion Park Rail NSW 2527 02 4256 3740 sales@mufflermen.com.au Send vehicle details