
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 GDJ79 Ute, 2.8L TD, 2023-Current, 3in Turbo Back With Cat & With Muffler.
Category: Mufflers and resonators


The MPI Automotive MKTY0404 runs a rear muffler and keeps the factory cat — the quietest-mannered with-cat build of the 3in turbo-back range for the Toyota Landcruiser GDJ79 2.8L turbo-diesel ute from 2023. The muffler is the deciding feature, settling the diesel note rather than letting it run hard.
A muffler quietens by absorption and reflection, so the MKTY0404 keeps the GDJ79's note the calmest of the with-cat builds. It suits owners who want the freer-flowing 3in run from the turbo back but a civil tone to live with daily, without the bark of a hotdog or open rear. This is the tidy-upgrade pick rather than the loud one.
This build retains the factory catalytic converter, so the emissions hardware the ute left the factory with stays in place — the usual focus on a modern diesel ute. Keeping the cat does not by itself make the system compliant, since the rear change affects noise, so confirm the exact build and any state requirements with the workshop before fitting.
Turbo-back means the run is replaced from the turbo outlet rearward, a longer span than a rear-section swap. At 3in the MKTY0404 covers that full run on the GDJ79 2.8L ute from 2023, finishing through the rear muffler. MPI Automotive lists it at $2880.32, generally ordered in to suit your build.
Oak Flats Muffler Men supplies and fits MPI turbo-back systems in our own bay across the Illawarra. The MKTY0404 is listed to fit the GDJ79 2.8L ute from 2023; send your build and we will confirm clearances and book it in.
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.