SSMKCH0030

Silverado 2500 HD T1, 6.6L TD V8, 2020-2025, 4in T/Back, Suits OEM Tailpipe, Cat

Silverado 2500 HD T1, 6.6L TD V8, 2020-2025, 4in T/Back, Suits OEM Tailpipe, Cat & Without Muffler.

BrandMantaMPI Automotive

Category: Mufflers and resonators

RRP $4106.67 AUD
In stock at supplier
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Silverado 2500 HD T1, 6.6L TD V8, 2020-2025, 4in T/Back, Suits OEM Tailpipe, Cat & Without Muffler product image

Part specs

SKU
SSMKCH0030
Supplier
MPI Automotive
Category
Mufflers and resonators
Vehicle fitment
Chevrolet
Stock status
In stock at supplier

Keeping the catalytic converter while deleting the muffler is the defining choice on the MPI Automotive SSMKCH0030. This 4in turbo-back section is listed to fit the Chevrolet Silverado 2500 HD T1 6.6L turbo-diesel V8 (2020–2025) and suits the OEM tailpipe.

What does the cat-retained, muffler-deleted build give you?

The SSMKCH0030 holds the catalytic converter in place while running the 4in section muffler-free. That opens the note up over a muffled system — there's no rear silencer — while leaving the converter where the factory put it. It mates to the OEM tailpipe, so the rear exit stays standard while the upstream run is freed up.

Is it road legal?

Because the SSMKCH0030 keeps the catalytic converter, the cat-delete compliance issue doesn't apply to this variant — the converter remains fitted. Deleting the muffler does change the note significantly, so confirm noise levels and any state requirements with the workshop before fitting; emissions hardware is only one element of registration.

Will it suit my Silverado 2500 HD?

It's listed to fit the 2020–2025 Chevrolet Silverado 2500 HD T1 6.6L turbo-diesel V8. As it's built to suit the OEM tailpipe, send your build to the workshop so we can confirm the listing and tailpipe interface against your truck before ordering.

What does fitting involve at our Illawarra workshop?

Oak Flats Muffler Men supplies and fits this MPI Automotive section in-house across the Illawarra. We confirm the OEM tailpipe connection and hanger positions on the muffler-free 4in run, check the listed Silverado fitment, and book the bay. The RRP is $4,106.67.

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

Common questions

Does the SSMKCH0030 keep the catalytic converter?
Yes. This is the cat-retained, muffler-deleted variant, so the converter stays in place while the rear runs muffler-free.
Is it louder than a muffled section?
Yes — with the muffler deleted the note opens up. We don't publish decibel figures, so we'd talk through the note before fitting.
Does it use the factory tailpipe?
Yes. It's built to suit the OEM Silverado tailpipe, so the standard rear exit is 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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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.