
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 Without Cat & With Muffler.
Category: Mufflers and resonators


This is the cat-delete build that keeps a rear muffler: the MPI Automotive SSMKTY0420 is a 3in turbo-back with cat-delete and a muffler, listed to fit the Toyota Landcruiser GDJ76 wagon 2.8L turbo-diesel (2023-current). It runs the open cat-delete plumbing but retains a silencer to keep the note manageable.
Deleting the catalytic converter opens the system, but the SSMKTY0420 keeps a rear muffler so a chambered silencer still absorbs and reflects sound before the gas exits. On the GDJ76's 2.8L turbo-diesel that gives a fuller note than stock without the bare-pipe bark of a no-silencer build. It is the cat-delete option for an owner who wants the freer flow of the deleted system but a quieter result through the back of the wagon.
No — the SSMKTY0420 deletes the catalytic converter on a road-relevant turbo-back, so it is not ADR 79/04 compliant for road registration in NSW and is for off-road use only. The muffler controls volume, but it does not restore the emissions equipment the Landcruiser needs to be registered on public roads here.
A turbo-back replaces the exhaust from the turbo outlet rearward, the full engine-back span. The supplier lists this at a 3in bore, sized for a worked 2.8L diesel rather than a small engine, and the muffler sits in that 3in run to silence the gas before it leaves — the difference between this variant and the hotdog or bare-pipe versions in the family.
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 routing and muffler clearance, and discuss the off-road use case before booking the bay. It is a brought-in item; the listed recommended retail is $2,791.51, 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.