Does the SSMKNI0103 keep the catalytic converter?

Yes — it's a cat-back system, so it replaces the exhaust from the cat rearward and leaves the factory catalytic converter in place. Confirm details with the workshop.

What's the pipe size and muffler setup?

It's a 2.5in system with a centre muffler and a rear hotdog resonator, listed for the Nissan Patrol GU 4.8L.

Will it fit my Patrol GU?

It's listed to fit the GU 4.8L. Send your exact build to the workshop so we can confirm fitment before you order.

SSMKNI0103

Nissan Patrol GU 4.8L 2.5in Cat Back System Centre Muffler & Rear Hotdog

Nissan Patrol GU 4.8L 2.5in Cat Back System Centre Muffler & Rear Hotdog (SKU: SSMKNI0103) Engineered

BrandMantaMPI Automotive

Category: Mufflers and resonators

RRP $1152.83 AUD

In stock at supplier

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Nissan Patrol GU 4.8L 2.5in Cat Back System Centre Muffler & Rear Hotdog product image

Part specs

SKU: SSMKNI0103
Supplier: MPI Automotive
Category: Mufflers and resonators
Vehicle fitment: Nissan
Stock status: In stock at supplier

The MPI Automotive SSMKNI0103 is a 2.5in cat-back system for the Nissan Patrol GU 4.8L, running a centre muffler into a rear hotdog. Being a cat-back is the key point: it replaces everything from the catalytic converter rearward, so the factory cat and its emissions role stay exactly where Nissan left them.

What does a cat-back cover?

A cat-back system replaces the exhaust from the rear of the catalytic converter to the tailpipe, leaving the cat in place. For the 4.8L petrol GU Patrol, that means a fresh 2.5in run with a centre muffler and a rear hotdog, without touching the front-end emissions hardware. It's the popular middle path: more flow and a reworked note over a worn factory system, while keeping the converter that road compliance hinges on.

How do the centre muffler and rear hotdog shape the sound?

The centre muffler is the chambered silencer doing the main volume control, and the rear hotdog is a small straight-through resonator placed behind it to take the edge off droning frequencies at cruise. Together they aim for a cleaner note than a stock system without turning the 4.8L into a drone machine on a long highway run. Sound character comes from the layout, not from any figure we can publish.

Will it suit my 4.8L Patrol GU?

The SSMKNI0103 is listed to fit the Nissan Patrol GU with the 4.8L engine. GU production ran for years with detail changes, so confirm your exact variant and hanger layout with us before ordering so the cat-back joins line up first time.

What does fitting involve at our Illawarra workshop?

Oak Flats Muffler Men fits cat-back systems like this in-house across the Illawarra. We mate it to your existing catalytic converter, set the centre muffler and rear hotdog clearances, and align the hangers so the system sits true under load. Send your build and we'll book it in.

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

Common questions

Does the SSMKNI0103 keep the catalytic converter?: Yes — it's a cat-back system, so it replaces the exhaust from the cat rearward and leaves the factory catalytic converter in place. Confirm details with the workshop.
What's the pipe size and muffler setup?: It's a 2.5in system with a centre muffler and a rear hotdog resonator, listed for the Nissan Patrol GU 4.8L.
Will it fit my Patrol GU?: It's listed to fit the GU 4.8L. Send your exact build to the workshop so we can confirm fitment before you order.

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