SSMKHN0135

VY VZ V8 HSV Sedan 3in Dual With 1 7/8 in Extractors Muffler

VY VZ V8 HSV Sedan 3in Dual With 1 7/8 in Extractors Muffler/Muffler.

BrandMantaMPI Automotive

Category: Extractors and headers

RRP $5519.25 AUD
In stock at supplier
Afterpay, Zip Pay & Zip Money available
Afterpay acceptedZip accepted — Zip Pay and Zip Money
VY VZ V8 HSV Sedan 3in Dual With 1 7/8 in Extractors Muffler/Muffler product image

Part specs

SKU
SSMKHN0135
Supplier
MPI Automotive
Category
Extractors and headers
Vehicle fitment
Holden
Stock status
In stock at supplier

The MPI Automotive SSMKHN0135 is the large-bore HSV sedan build — 1⅞in primaries into a 3in dual, muffler each side, listed to fit the VY-VZ V8 HSV sedan. It pairs the higher-rpm extractor spec with the most damped rear in the 3in range.

What do the 1⅞in primaries suit?

Primary tube size is the application choice. At 1⅞in the SSMKHN0135 favours higher-rpm, higher-output builds, where larger primaries help the V8 keep flowing as demand climbs — the bigger-bore end of the extractor range rather than the smaller primaries tuned for low-down gas speed on a stock motor. On an HSV sedan that's a coherent spec for an owner running more engine.

Why a 3in dual with a muffler each side?

The 3in dual gives the 1⅞in extractors room to flow at the top end, and a silencer on each bank gives the most damping of the rear options. That combination lets the SSMKHN0135 run the large-bore, higher-rpm front end without the volume of a hotdog or open tail — a fuller, controlled note that keeps a four-door liveable on the road.

What's in the package?

It's a complete extractor-back system. The 1⅞in tube-and-merge extractors replace the cast factory manifolds at the heads — the main breathing restriction on these V8s — then a 3in dual carries the gas back through a rear muffler each side. The upgrade runs from the engine all the way to the tail, listed for the VY-VZ HSV sedan body.

How is fit confirmed at our Illawarra workshop?

Oak Flats Muffler Men fits MPI extractor systems in-house across the Illawarra. The SSMKHN0135 is listed to fit the VY-VZ V8 HSV sedan; as a large-bore, major-spend item we confirm your exact series and that the 1⅞in/3in sizing suits your build before ordering. Send your build and we'll book it in.

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

Common questions

What engines do the 1⅞in primaries suit?
Higher-rpm, higher-output V8 builds — the larger-bore extractor option, here matched to a 3in dual. Confirm the sizing suits your engine with the workshop.
Is the muffler-each-side rear the quietest 3in option?
Yes — a silencer on each bank gives the most damping, so the SSMKHN0135 is the most controlled note among the 3in HSV sedan builds.

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

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.