
Isuzu MU-X Jan 2017-2025 3.0L DPF Turbo Back With Cat & Muffler
MPI AutomotiveRRP$2892.03Isuzu MU-X Jan 2017-2025 3.0L DPF Turbo Back With Cat & Muffler.
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Isuzu D-Max 2020 ON 3.0L TURBO BACK WITHOUT CAT & WITH MUFFLER (SKU: MKIZ0023) Engineered. Quality guaranteed.
Category: Mufflers and resonators


The MPI Automotive MKIZ0023 is a cat-delete turbo-back built to fit the Isuzu D-Max 3.0L from 2020 on, running a rear muffler but deleting the factory catalytic converter. That cat-delete is the defining choice here: it strips the emissions hardware out of the run, which is why this is an off-road part rather than a road-registrable upgrade.
Deleting the catalytic converter is the headline of this SKU. On a 3.0L diesel D-Max the cat sits in the road-relevant exhaust path, so removing it changes the legal status of the vehicle. With the converter gone, this turbo-back is not ADR 79/04 compliant for road registration in NSW and is supplied for off-road use only. There is no softening that — if the ute is driven on public roads, this is the wrong build, and the with-cat version of the same system is what you want instead.
A turbo-back replaces the exhaust from the turbo outlet all the way to the tailpipe, a longer span than a cat-back and the section where a diesel tends to free up. This one still finishes through a rear muffler, so even with the cat removed the note stays tempered rather than raw — the muffler does the quietening by absorption and reflection. It is the configuration for a competition or paddock D-Max where you want the cat gone but not an undamped drone.
It is listed to fit the Isuzu D-Max 3.0L from 2020 onward. Series, cab and exact build aren't broken out in the supplier data, so confirm your variant and year with the workshop before ordering. The MKIZ0023 carries a published RRP of $2,078.47, and as a cat-delete configuration it may be a special order depending on stock.
Oak Flats Muffler Men supplies and fits MPI turbo-back systems in-house across the Illawarra. We check clearances along the full run, set the muffler position, and confirm the part matches your D-Max before it goes on the hoist. Because this is an off-road cat-delete, we'll talk through where it can legally be used first.
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.