
HSV VE E2 Sedan Wagon 3in Catback Muffler
MPI AutomotiveRRP$4027.11HSV VE E2 Sedan Wagon 3in Catback Muffler/Muffler (SKU: SSMKHN0178) Engineered. Quality guaranteed.
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Holden Commodore VT VU VY VZ Sedan V8 Dual 2 1/2in Centre Muffler Recommend For Auto for selected vehicle applications.
Category: Mufflers and resonators


Built in stainless and run as a dual 2½in pairing, the MPI Automotive SSMBM170MF is a centre-muffler set for the V8 Holden Commodore VT, VU, VY and VZ sedan, and is the section MPI flags as the pick for automatic cars.
This is a paired centre-muffler section running twin 2½in bores rather than a single larger pipe. On a V8 VT–VZ that splits the gas flow into two streams through the mid-section, which suits the factory dual layout these sedans were built around. At 2½in per side it's matched to a stock-to-mild V8 rather than a heavily worked one, keeping flow honest without going oversize.
MPI lists this section as the recommended choice for automatic cars. The auto's torque-converter and shift behaviour change how the engine loads the exhaust at low rpm, and a centre muffler tuned for that pairing keeps the note settled rather than droning on light throttle. If your Commodore is a manual, tell us and we'll check whether this is still the right section for your build.
The SS designation means stainless rather than aluminised. On a Commodore sedan that lives outdoors, stainless resists the surface rust and perforation that eventually claims mild-steel mufflers, so the section lasts longer underneath. It's the part to choose if you want the centre muffler to outlive the rest of a tired factory system.
It's listed to fit the V8 sedan across the VT, VU, VY and VZ range. Holden ran detail changes through that era, so confirm your exact model and the current pipe sizing with Oak Flats Muffler Men in the Illawarra before ordering — feed data is a guide, not a guarantee.
Stocked and fitted by Oak Flats Muffler Men, the Illawarra exhaust and 4x4 specialist in Oak Flats, NSW.
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.
Send the vehicle make, model, year, engine, current issue, desired sound or performance goal, and clear photos of the existing exhaust where available.