SSMKCH0035

Silverado 2500 HD K2, 6.6L TD V8, 2017-2019, 4in-5in Turbo Back Without Cat

Silverado 2500 HD K2, 6.6L TD V8, 2017-2019, 4in-5in Turbo Back Without Cat & With Muffler.

BrandMantaMPI Automotive

Category: Mufflers and resonators

RRP $5953.13 AUD
In stock at supplier
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Silverado 2500 HD K2, 6.6L TD V8, 2017-2019, 4in-5in Turbo Back Without Cat & With Muffler product image

Part specs

SKU
SSMKCH0035
Supplier
MPI Automotive
Category
Mufflers and resonators
Vehicle fitment
Chevrolet
Stock status
In stock at supplier

The muffler is what sets this one apart from the bare-pipe version: the MPI Automotive SSMKCH0035 is a 4in cat-delete turbo-back that keeps a rear muffler, listed to fit the Chevrolet Silverado 2500 HD 6.6L V8 turbo-diesel (2017–2019). It deletes the catalytic converter but retains a silencer, so it is the cat-delete build that still tries to keep the note civil.

Why keep the muffler on a cat-delete system?

Running cat-delete opens the system up, but it does not have to be raucous. The SSMKCH0035 keeps a rear muffler in the run, so a chambered silencer still does the job of absorbing and reflecting sound before the gas leaves the tailpipe. On a big 6.6L turbo-diesel that means a fuller note than stock without the full straight-through bark of a no-muffler build — the same cat-delete plumbing, but with the volume reined in at the back.

Is it road legal?

No — the SSMKCH0035 deletes the catalytic converter on a road-relevant turbo-back, so it is not ADR 79/04 compliant for road registration in NSW and is for off-road use only. Keeping the muffler controls the noise, but it does not restore the emissions equipment the truck needs to be registered on public roads here.

What does the 4in turbo-back cover?

A turbo-back replaces everything from the turbo outlet rearward, the full engine-back section. The supplier lists this at a 4in bore, sized to the 2500 HD's 6.6L turbo-diesel V8 rather than a small motor. The muffler sits in that 4in run to silence the gas before it exits, which is the difference between this variant and the otherwise identical no-muffler version in the family.

What does fitting involve at our Illawarra workshop?

Oak Flats Muffler Men supplies and fits this turbo-back in-house across the Illawarra. We confirm it against your 2017–2019 Silverado 2500 HD, check the 4in routing and muffler clearance, and book the bay once fitment is verified. It is a brought-in item; the listed recommended retail is $5,953.13, which we confirm with you along with availability before ordering.

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

Common questions

Is the SSMKCH0035 road legal in NSW?
No. It deletes the catalytic converter, so it is not ADR 79/04 compliant for road registration in NSW and is for off-road use only.
Will it be quieter than the no-muffler version?
It keeps a rear muffler, so it is the more subdued cat-delete option of the family. We can't quote a decibel figure, but a chambered muffler silences more than a bare pipe.
Will it fit my Silverado 2500 HD?
It is listed to fit the Chevrolet Silverado 2500 HD 6.6L V8 turbo-diesel (2017–2019). 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.
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