MKHN0143

Holden VX VY V8 Monaro 2.5in Dual With Extractors Hotdog/Muffler

Holden VX VY V8 Monaro 2.5in Dual With Extractors Hotdog/Muffler (SKU: MKHN0143) Engineered. Quality guaranteed.

BrandMantaMPI Automotive

Category: Extractors and headers

RRP $4075.59 AUD
In stock at supplier
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Holden VX VY V8 Monaro 2.5in Dual With Extractors Hotdog/Muffler product image

Part specs

SKU
MKHN0143
Supplier
MPI Automotive
Category
Extractors and headers
Vehicle fitment
Holden
Stock status
In stock at supplier

The MPI Automotive MKHN0143 is a 2.5in dual extractor-back exhaust listed to fit the Holden VX–VY V8 Monaro. It runs tuned extractors into twin 2.5in pipes with a hotdog resonator and a muffler, covering the full path from the heads back on the Monaro coupe.

What does this MKHN0143 system cover?

This is a dual-pipe extractor-back package: tubular extractors at the heads feed two 2.5in lines rearward, with a hotdog resonator and a muffler handling the silencing. On the VX–VY Monaro V8 that's the complete exhaust path from the engine back. The twin 2.5in layout splits flow across two pipes, with two silencing stages keeping the note resolved on the coupe.

What's a hotdog-and-muffler dual setup and what does it change?

Extractors swap the cast manifolds for tubular runners that merge downstream, easing back-pressure off the heads and changing how the V8 breathes and sounds. The hotdog is a compact straight-through resonator that takes the harsh edge off the note, while the main muffler does the heavier silencing. Running two stages on a dual system keeps a Monaro's V8 civil rather than droning, at the cost of more pipework than a single-pipe job.

Will it suit my VX–VY Monaro?

It's listed to fit the Holden VX and VY V8 Monaro — the Commodore-based coupe of that era. Series and body matter, so a later or earlier car may take a different part. Treat the fit as listed to fit, not guaranteed, and confirm your exact build with the workshop before ordering.

What does fitting involve at our Illawarra workshop?

Oak Flats Muffler Men fits dual extractor systems like this in-house across the Illawarra. We confirm the VX–VY Monaro fitment, check extractor and steering clearances and align the twin 2.5in routing and silencers before booking the bay.

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

Common questions

Will the MKHN0143 fit my Monaro?
It's listed to fit the Holden VX–VY V8 Monaro. Confirm your exact series and build with the workshop before ordering.
Is it a dual system?
Yes — twin 2.5in pipes with a hotdog resonator and a muffler.
What does the hotdog do?
It's a compact resonator that softens the note ahead of the main muffler — two silencing stages on this system.

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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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.