What makes the MKNI0122 different from a fixed muffler?

It uses a bi-modal valve, so it switches between a quieter closed mode and a louder open mode instead of running one fixed volume. That lets the same system stay civil on a town run and open up when you want the V8 note.

Does this keep my catalytic converters?

Yes — it's a cat-back, so it replaces the exhaust from behind the cats rearward and leaves the factory converters in place.

Will it fit my Patrol Warrior?

It's listed to fit the Nissan Patrol Warrior Y62 V8 5.6L Wagon. Confirm your exact build with the workshop before ordering.

MKNI0122

Nissan Patrol Warrior Y62 V8 5.6L Wagon 3in Catback With Muffler & Bi-Modal Integration

Nissan Patrol Warrior Y62 V8 5.6L Wagon 3in Catback With Muffler & Bi-Modal Integration (MKNI0122)

BrandMantaMPI Automotive

Category: Mufflers and resonators

RRP $1927.10 AUD

In stock at supplier

Request fitted quote Call the workshop

Afterpay, Zip Pay & Zip Money available

Nissan Patrol Warrior Y62 V8 5.6L Wagon 3in Catback With Muffler & Bi-Modal Integration product image

Part specs

SKU: MKNI0122
Supplier: MPI Automotive
Category: Mufflers and resonators
Vehicle fitment: Nissan
Stock status: In stock at supplier

The MPI Automotive MKNI0122 is a valved, bi-modal 3in cat-back system listed to fit the Nissan Patrol Warrior Y62 V8 5.6L Wagon. The bi-modal valve is the whole point here — it switches the note between a civil cruise and a louder open mode, so the same exhaust covers a quiet town run and a deliberate V8 holler.

What does the bi-modal valve actually do?

A bi-modal exhaust runs two paths and a valve that decides which one the gas takes. Closed, it routes through the muffler for a subdued, daily-driver note; open, it bypasses for a freer, louder character. On a Y62's 5.6L petrol V8 that means you keep the manners for a quiet street and unlock the harder note when you want it, rather than committing to one fixed volume the way a plain muffler does. The MKNI0122 is a complete cat-back, so it integrates that valved muffler into the whole rear section rather than as a bolt-in centre piece.

What does a cat-back cover on the Y62?

Cat-back means everything from behind the catalytic converters rearward is replaced — the mid-pipes, the bi-modal muffler and the tailpipe — while the factory cats and the engine-side hardware stay put. Built in 3in, it's sized to suit the 5.6L V8 and finishes through the integrated valved muffler. Because it leaves the converters in place, it's the rear-half upgrade rather than an engine-back job.

Will it suit my Patrol Warrior?

It's listed to fit the Nissan Patrol Warrior Y62 V8 5.6L in Wagon form. Series and model-year aren't published by the supplier, so send your exact build and we'll confirm the valve wiring, clearances and tailpipe exit before booking.

What does fitting involve at Oak Flats Muffler Men?

We fit valved cat-back systems like this in-house across the Illawarra. The bi-modal unit needs its control side set up as well as the pipework hung, so we check the hangers, confirm the valve operates cleanly and road-test the quiet and open modes. The MKNI0122 is a special-order item with a published RRP of $1,927.10.

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

Common questions

What makes the MKNI0122 different from a fixed muffler?: It uses a bi-modal valve, so it switches between a quieter closed mode and a louder open mode instead of running one fixed volume. That lets the same system stay civil on a town run and open up when you want the V8 note.
Does this keep my catalytic converters?: Yes — it's a cat-back, so it replaces the exhaust from behind the cats rearward and leaves the factory converters in place.
Will it fit my Patrol Warrior?: It's listed to fit the Nissan Patrol Warrior Y62 V8 5.6L Wagon. Confirm your exact build with the workshop before ordering.

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