Chevrolet Silverado 1500 Z71 Gen 4 T1 Varex Valved Cat Back Exhaust
Exhaust Systems AustraliaRRP$2550.00Chevrolet Silverado 1500 Z71 Gen 4 T1 Varex Valved Cat Back Exhaust System Special order item.
View partchevrolet-silverado-1500-gen-4-t1-varex-valved-cat-back-exhaust-system
Chevrolet Silverado 1500 Gen 4 T1 Varex Valved Cat Back Exhaust System Special order
Chevrolet Silverado 1500 Gen 4 T1 Varex Valved Cat Back Exhaust System Special order item for selected vehicle applications.
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-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-GEN-4-T1-VAREX-VALVED-CAT-BACK-EXHAUST-SYSTEM is a Varex valved (bi-modal) cat-back exhaust system listed to fit the Chevrolet Silverado 1500 Gen-4 T1. It's a special-order item.
What does this system cover?
This is a cat-back run for the Gen-4 T1 Silverado 1500, replacing the exhaust from the catalytic converter back. It uses a Varex valved, bi-modal muffler — a valve that opens and closes the silencing path so the note can be switched between quieter and louder. Diameter and material aren't published, so we don't quote them.
What's a valved cat-back and what does it change?
A bi-modal valved cat-back keeps the cat in place but adds a valve in the rear muffler. Closed, it routes through more silencing for a quieter cruise; open, it bypasses for a louder note. That gives two modes from one system — louder than stock when open, not a permanent drone on a daily-driven full-size truck.
Will it suit my Silverado?
It's listed to fit the Chevrolet Silverado 1500 in Gen-4 T1 form. This is the non-Z71 listing in the range; as a special-order item, confirm your exact generation and trim with the workshop before ordering — feed data can be imperfect.
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 confirm the system against your truck, set up the Varex valve control, check clearances, and book the bay once it's confirmed. RRP on this listing is AUD 2550.
Stocked and fitted by Oak Flats Muffler Men, the Illawarra exhaust and 4x4 specialist in Oak Flats, NSW.
Common questions
- How does this differ from the Z71 listing?
- This is the Gen-4 T1 Silverado 1500 listing without the Z71 trim call-out. Both run a Varex valved cat-back — confirm your exact trim with the workshop.
- What does the valve do?
- It's a bi-modal valve — quieter closed, louder than stock open. It gives two modes from the one cat-back.
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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