
HFD-VDJ79 V8 4.5L TD, (DPF) Ute 2016 To Current, 4in Dual With Cat
MPI AutomotiveRRP$6245.89HFD-VDJ79 V8 4.5L TD, (DPF) Ute 2016 To Current, 4in Dual With Cat & Without Muffler (SKU: SSMKTY0336) Engineered.
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Landcruiser GDJ76 Wagon, 2.8L TD, 2023-Current, 3in Turbo Back With Cat & With Hotdog (SKU: SSMKTY0416) Engineered.
Category: Mufflers and resonators


This build keeps the cat but tunes with a hotdog: the MPI Automotive SSMKTY0416 is a 3in turbo-back that retains the catalytic converter and runs a hotdog resonator instead of a full muffler, listed to fit the Toyota Landcruiser GDJ76 wagon 2.8L turbo-diesel (2023-current).
A hotdog is a compact straight-through resonator — gas runs down a perforated core wrapped in packing, passing with little restriction. It is a tuning device rather than a silencer, taking the edge off a drone or rasp instead of dropping overall volume. On the SSMKTY0416 it replaces a full muffler while the catalytic converter stays in place, so you get a freer-flowing, fuller note than the muffled build without deleting the emissions hardware.
Because the SSMKTY0416 keeps the catalytic converter, it retains the emissions equipment the Landcruiser left the factory with — the usual sticking point on a diesel turbo-back. A hotdog flows more freely and is louder than a full muffler, so state noise and registration rules still apply; confirm the exact build and any requirements with the workshop before fitting.
A turbo-back runs from the turbo outlet rearward, the full engine-back span. The supplier lists this at a 3in bore, matched to a worked 2.8L diesel. Running the hotdog at 3in keeps the bore consistent with the system so there is no pinch point where the resonator sits, with the cat retained as the main device in the path.
Oak Flats Muffler Men supplies and fits this turbo-back in-house across the Illawarra. We confirm it against your GDJ76 wagon, check the 3in pipework, cat and hotdog clearance, and book the bay once fitment is verified. It is a brought-in item; the listed recommended retail is $3,062.07, which we confirm with you along with availability before ordering.
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.