HOLDEN COMMODORE VT-VZ 5.7L GENIII TUNED 1 3/4" HEADER - CAT X 2 X 3" KIT (SKU.
Category: Extractors and headers
This Exhaust Systems Australia tuned 1-3/4in header, cat and 3in kit is listed to fit the Holden Commodore VT to VZ with the 5.7L GenIII V8. It is a mandrel-bent header set bundled with catalytic converters and 3in pipework, sized at 4in through the kit, covering the front of the system from the heads back.
Unlike a bare header set, this is a header-plus-cat-and-pipe kit: the 1-3/4in tuned headers replace the manifolds, the kit includes catalytic converters (cat x 2), and 3in pipework carries it back. That makes it the front section of the exhaust as a matched package rather than separate parts you assemble piece by piece. Keeping the cats in the kit means the emissions hardware stays in the system.
A tuned header gives each cylinder a matched-length tubular runner before the pulses merge, which is the point of fitting extractors over a cast manifold. GenIII is Holden's name for the 5.7L LS-family V8 used across these Commodores, so the listing is naming the engine this kit was designed around. The 4in figure in the listing describes the kit's pipework; no power or sound figures are published.
It is listed to fit the VT through VZ Commodore with the 5.7L GenIII V8. The badge alone does not settle fit, because head, steering and accessory variations affect clearance and the cat positioning, so confirm your build with the workshop before ordering.
Oak Flats Muffler Men fits header-and-cat kits like this in-house across the Illawarra. We seat the header flanges, position the included cats, and align the 3in pipework so the joints seal without leaks or contact. Supplied by Exhaust Systems Australia at $1,595 AUD; tell us your VT-VZ build and we will confirm the kit before booking the bay.
Stocked and fitted by Oak Flats Muffler Men, the Illawarra exhaust and 4x4 specialist in Oak Flats, NSW.
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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Exhaust Systems Australia Holden Commodore VE-VF V8 1 7/8" Tuned (SS, Calais, GTS) ## Mandrel Bent ## USE DSF138 X 2 ##.
View partHOLDEN COMMODORE VT-VZ 5.7L GENIII TUNED 1 3/4" HEADER - CAT X 2 X 2 1/2".
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Holden Commodore VE-VF V8 1 3/4" Tuned (SS, Calais, GTS) ## Mandrel Bent ## USE DSF138 X 2 ## for Extractors - Holden.
View partSend the vehicle make, model, year, engine, current issue, desired sound or performance goal, and clear photos of the existing exhaust where available.
