SSMKTY0378

Toyota Landcruiser 300 Series V6 4in Turbo Back With Cat & Muffler

Toyota Landcruiser 300 Series V6 4in Turbo Back With Cat & Muffler.

BrandMantaMPI Automotive

Category: Mufflers and resonators

RRP $4346.09 AUD
In stock at supplier
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Toyota Landcruiser 300 Series V6 4in Turbo Back With Cat & Muffler product image

Part specs

SKU
SSMKTY0378
Supplier
MPI Automotive
Category
Mufflers and resonators
Vehicle fitment
Toyota
Stock status
In stock at supplier

The MPI Automotive SSMKTY0378 is a 4in stainless turbo-back system for the V6 Toyota Landcruiser 300 Series, run with the catalytic converter retained and a muffler in place — the keep-the-cat, keep-it-civil build.

Why does keeping the cat matter?

This SSMKTY0378 retains the catalytic converter rather than deleting it, so it leaves the emissions hardware the 300 Series left the factory with in place — the key difference from the cat-delete builds in this family. Paired with a muffler, it's the turbo-back option set up to stay closest to standard on emissions and noise while still going to a 4in run.

Is it road legal?

Because the SSMKTY0378 keeps the catalytic converter, it retains the emissions equipment that matters for road compliance on a diesel V6 — the sticking point on these systems. That said, we can't certify any specific build from the listing alone, so confirm the exact configuration and your state's requirements with the workshop before fitting.

What is a 4in turbo-back system?

Turbo-back replaces the exhaust from the turbo outlet rearward — a longer span than a cat-back, taking in the section where a twin-turbo diesel V6 frees up. At 4in it's the large-bore choice sized for the engine, with the cat retained and a muffler keeping the note settled. The stainless build resists corrosion on a touring 300 Series.

Will it suit my 300 Series, and how do we fit it?

It's listed to fit the V6 Toyota Landcruiser 300 Series at 4in. Oak Flats Muffler Men supplies and fits this MPI Automotive system in-house across the Illawarra, confirming the turbo interface, the cat position and clearances. Confirm the exact build with the workshop, as feed data is a guide only.

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

Common questions

Does the SSMKTY0378 keep the catalytic converter?
Yes. It's the with-cat turbo-back, so the factory catalytic converter stays in place, paired with a muffler to keep the note settled.
Is it road legal?
Keeping the cat retains the emissions equipment that matters for compliance, but we can't certify a specific build from the listing. Confirm the configuration and your state's requirements with the workshop.
What does turbo-back cover?
It replaces the exhaust from the turbo outlet rearward — a longer span than a cat-back — at 4in on the 300 Series V6, with cat and muffler retained.

Fitment support across the Illawarra

Fitment checks near you across 18 Illawarra suburbs, from Oak Flats and Shellharbour to Wollongong and Kiama.
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Send the vehicle make, model, year, engine, current issue, desired sound or performance goal, and clear photos of the existing exhaust where available.