Is the MKNI0030 for the V6 Navara?

Yes, it's listed to fit the Nissan Navara D40 3.0L 550 V6. Confirm your exact build with the workshop before ordering.

Does it keep the catalytic converter?

Yes. This is a with-cat system, so the factory catalytic converter stays in place, making it more registration-friendly than a cat-delete.

It runs a rear muffler that absorbs sound, so it's the more subdued, daily-friendly build rather than a loud one.

MKNI0030

Nissan Navara D40 3.0L 550 V6 With Cat R Muffler

MPI Automotive Nissan Navara D40 3.0L 550 V6 With Cat R Muffler.

BrandMantaMPI Automotive

Category: Mufflers and resonators

RRP $2195.77 AUD

In stock at supplier

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Nissan Navara D40 3.0L 550 V6 With Cat R Muffler product image

Part specs

SKU: MKNI0030
Supplier: MPI Automotive
Category: Mufflers and resonators
Vehicle fitment: Nissan
Stock status: In stock at supplier

The MPI Automotive MKNI0030 is built for the V6 Navara — the Nissan Navara D40 3.0L 550 V6 — and keeps the catalytic converter, finishing with a rear muffler. It's the with-cat, muffled system for the V6 D40: more flow than stock, but with the emissions hardware retained and the note kept civil.

What does the with-cat, rear-muffler layout give the V6?

Keeping the catalytic converter means the V6 Navara holds onto the emissions control it left the factory with, while the rear muffler quietens the note by absorption. So the MKNI0030 is the sensible, daily-friendly build for the 3.0L 550 V6: it opens the system up over the factory plumbing but keeps the cat in place and the volume in check rather than chasing a loud, open note. It suits a D40 V6 owner after a tidy breathing upgrade without deleting hardware.

Is the MKNI0030 road legal?

Because it keeps the catalytic converter, the MKNI0030 leaves the emissions equipment the Navara came with in place — the usual compliance sticking point on diesel utes. That makes it a registration-friendly path, though final compliance depends on your specific build and state requirements, so confirm those with the workshop before fitting.

Will it suit my D40 V6?

It's listed to fit the Nissan Navara D40 3.0L 550 V6 with cat and a rear muffler. The supplier doesn't publish a bore or year range, so we won't quote a diameter — confirm your exact V6 D40 build with the workshop before we order, since feed data can be imperfect and we'd rather verify the actual vehicle.

What's involved in fitting it in the Illawarra?

Oak Flats Muffler Men supplies and fits this MPI Automotive system at our Oak Flats workshop. We'll confirm the routing, the cat position and the rear-muffler clearance under your D40 V6, check the fitment against your vehicle, and book the bay once it's confirmed.

Stocked and fitted by Oak Flats Muffler Men, the Illawarra exhaust and 4x4 specialist in Oak Flats, NSW.

Common questions

Is the MKNI0030 for the V6 Navara?: Yes, it's listed to fit the Nissan Navara D40 3.0L 550 V6. Confirm your exact build with the workshop before ordering.
Does it keep the catalytic converter?: Yes. This is a with-cat system, so the factory catalytic converter stays in place, making it more registration-friendly than a cat-delete.
Is it loud?: It runs a rear muffler that absorbs sound, so it's the more subdued, daily-friendly build rather than a loud one.

Fitment support across the Illawarra

Fitment checks near you across 18 Illawarra suburbs, from Oak Flats and Shellharbour to Wollongong and Kiama.Show nearby fitment areasCollapse section

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.

Book the right exhaust job without guessing.

Send the vehicle make, model, year, engine, current issue, desired sound or performance goal, and clear photos of the existing exhaust where available.

Unit 2/8 Shaban St, Albion Park Rail NSW 2527 02 4256 3740 sales@mufflermen.com.au Send vehicle details