Silverado 2500 HD T1, 6.6L TD V8, 2020-2025, 4in-5in Turbo Back With Cat
MPI AutomotiveRRP$7103.73Silverado 2500 HD T1, 6.6L TD V8, 2020-2025, 4in-5in Turbo Back With Cat & Muffler (SKU: SSMKCH0024) Engineered.
View partSSMKCH0031
Silverado 2500 HD T1, 6.6L TD V8, 2020-2025, 4in T/Back, Suits OEM Tailpipe, No Cat
Silverado 2500 HD T1, 6.6L TD V8, 2020-2025, 4in T/Back, Suits OEM Tailpipe, No Cat & With Muffler.
BrandMantaMPI Automotive
Category: Mufflers and resonators
RRP $3965.87 AUD
In stock at supplierAfterpay, Zip Pay & Zip Money available
Part specs
- SKU
- SSMKCH0031
- Supplier
- MPI Automotive
- Category
- Mufflers and resonators
- Vehicle fitment
- Chevrolet
- Stock status
- In stock at supplier
Running a muffler but deleting the cat is what separates the MPI Automotive SSMKCH0031 from its siblings. 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.
Is it road legal?
No. The SSMKCH0031 deletes the catalytic converter on a road-relevant exhaust, so it is not ADR 79/04 compliant for road registration in NSW and is intended for off-road use only. Keeping the muffler tames the note, but the cat delete still makes this an off-road part — there's no softening that.
Why keep a muffler on a cat-delete build?
Unlike a fully stripped section, the SSMKCH0031 retains a muffler in the 4in run. That holds the note down while the cat is removed, so it's the more subdued of the no-cat options — a choice for an off-road Silverado where the owner still wants a less raucous tone. It mates to the factory tailpipe so the rear exit stays standard.
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. Because it's built to suit the OEM tailpipe, send your build to the workshop so we can confirm the listing and the tailpipe interface against your truck before ordering.
What's involved in fitting it in the Illawarra?
Oak Flats Muffler Men supplies and fits this MPI Automotive section in-house across the Illawarra. As a cat-delete off-road build, we'll confirm intended use, the OEM tailpipe connection and hanger points, check the listed Silverado fitment, and book the bay. The RRP is $3,965.87.
Stocked and fitted by Oak Flats Muffler Men, the Illawarra exhaust and 4x4 specialist in Oak Flats, NSW.
Common questions
- Can I register a Silverado with the SSMKCH0031?
- No. With the catalytic converter deleted it is not ADR 79/04 compliant for road registration in NSW and is for off-road use only.
- Is it quieter than the no-cat, no-muffler version?
- Yes — this variant keeps a muffler, so it's more subdued than a fully stripped section. We don't publish decibel figures.
- Does it suit the OEM tailpipe?
- Yes. It's built to mate to the factory 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.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.
Check fitment near Oak FlatsCheck fitment near Albion Park RailCheck fitment near ShellharbourCheck fitment near WollongongCheck fitment near DaptoCheck fitment near WarillaCheck fitment near CorrimalCheck fitment near WoononaCheck fitment near BulliCheck fitment near ThirroulCheck fitment near KiamaCheck fitment near Albion ParkCheck fitment near Lake IllawarraCheck fitment near Mount WarrigalCheck fitment near Barrack HeightsCheck fitment near Barrack PointCheck fitment near BlackbuttCheck fitment near Flinders
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