Chevrolet Silverado 1500 Gen 4 T1 Varex Valved Cat Back Exhaust System
Exhaust Systems AustraliaRRP$2550.00Chevrolet Silverado 1500 Gen 4 T1 Varex Valved Cat Back Exhaust System Special order item for selected vehicle applications.
View partchevrolet-silverado-1500-z71-gen-4-t1-varex-valved-cat-back-exhaust-system
Chevrolet Silverado 1500 Z71 Gen 4 T1 Varex Valved Cat Back Exhaust System Special order
Chevrolet Silverado 1500 Z71 Gen 4 T1 Varex Valved Cat Back Exhaust System Special order item.
BrandXForceExhaust Systems Australia
Category: Complete exhaust systems
RRP $2550.00 AUD
Confirmed on orderAfterpay, Zip Pay & Zip Money available
Part specs
- SKU
- chevrolet-silverado-1500-z71-gen-4-t1-varex-valved-cat-back-exhaust-system
- Supplier
- Exhaust Systems Australia
- Category
- Complete exhaust systems
- Stock status
- Confirmed on order
The Exhaust Systems Australia CHEVROLET-SILVERADO-1500-Z71-GEN-4-T1-VAREX-VALVED-CAT-BACK-EXHAUST-SYSTEM is the Z71-trim listing of the Varex valved, bi-modal cat-back for the Chevrolet Silverado 1500 Gen-4 T1. Recommended retail is $2,550, and it is a special-order item we bring in and fit at our Illawarra workshop.
Why a switchable system on a Z71?
On a full-size truck like the Z71-trim Silverado 1500, owners often want a quiet highway cruise but a louder note on demand — and a fixed cat-back forces a single choice. This listing answers that with a Varex valved, bi-modal muffler: an in-line valve sets whether exhaust runs through the full silencing path or takes the shorter, louder route. The diameter and material are not published on this listing, so we leave them off and confirm the build at fitting.
How does the bi-modal valve actually work?
The valve sits in the rear muffler of this cat-back. With it shut, gas is routed through more silencing for an easier cruise; opened, it bypasses that silencing for a louder note than stock. Because it is a cat-back, all of this happens behind the catalytic converter — the factory cat and the pipework ahead of it stay in place, and the engine and emissions hardware are untouched.
Is this the right listing for my Silverado?
This is the Z71 trim listing in the Gen-4 T1 Silverado 1500 range, the counterpart to the non-Z71 version of the same Varex valved cat-back. Two concrete fitment entries sit on the record. As a special-order item, confirm your exact generation and trim with us before ordering, since feed data can be imperfect and the Z71 and standard listings are separate parts.
What does fitting involve at our Illawarra workshop?
Oak Flats Muffler Men supplies and fits valved cat-back systems in-house across the Illawarra. We match the kit to your truck, mount the Varex valve and wire up its control, check clearances under the tray and over the rear axle, then book the bay once it is confirmed. At $2,550 RRP and special-order, we order it in for your booking — ask us for current lead time.
Stocked and fitted by Oak Flats Muffler Men, the Illawarra exhaust and 4x4 specialist in Oak Flats, NSW.
Common questions
- How does the Z71 listing differ from the standard Silverado one?
- This is the Z71-trim listing; there is a separate non-Z71 version of the same Varex valved Gen-4 T1 cat-back. Confirm your exact trim with the workshop so we order the correct part.
- Can I switch between quiet and loud?
- Yes — the Varex valve gives two modes from the one cat-back: quieter with the valve closed, louder than stock with it open.
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.
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