HOLDEN COMMODORE VT-VZ 5.7L GENIII 1 3/4" ## MANDREL BENT ## TUNED DESIGN for Extractors - Holden.
Category: Extractors and headers
This Exhaust Systems Australia tuned, mandrel-bent extractor set is listed to fit the Holden Commodore VT-VZ 5.7L Gen III V8, built to a 1-3/4 design. The MPN is HOLDEN-COMMODORE-VT-VZ-5-7L-GENIII-1-3-4-MANDREL-BENT-TUNED-DESIGN.
This is a set of tuned-length, mandrel-bent extractors (headers) for the Holden Commodore VT to VZ on the 5.7L Gen III V8, built with 1-3/4 primaries. Extractors replace the factory cast manifolds with shaped tubes; mandrel bending keeps the tube's bore consistent through each bend rather than crimping it, which is the point of a tuned design.
Extractors swap the cast manifold for individual primary tubes that merge at a collector, giving each cylinder a cleaner, more even path off the head than a cast manifold's shared passages. A 1-3/4 primary is a common size for a 5.7L V8 of this era. The supplier publishes no power or sound figures, so we don't quote any — what we can say is that it's a tuned, mandrel-bent design rather than a plain cast replacement.
It's listed to fit the Holden Commodore VT through VZ with the 5.7L Gen III V8. Treat that as listed to fit rather than guaranteed, since feed data can be imperfect. Send the workshop your exact model and we'll confirm the 1-3/4 set is right for your car before ordering.
Oak Flats Muffler Men fits Gen III extractors in-house across the Illawarra. We check head-flange faces, clearances around the steering and crossmember, and the oxygen-sensor reach before signing off. At $1,295 AUD RRP it's a considered upgrade, so book the bay and we'll fit it properly.
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.
More extractors and headers the workshop supplies and fits. Send the vehicle and the part you are weighing up for a fitted quote.
Holden Commodore VF Bi Modal 1 3/4" Header System Special order item (SKU: holden-commodore-vf-bi-modal-1-3-4-header-system), $2399.00.
View part
Exhaust Systems Australia Holden VE/VF 6L & 6.2L 13/4" 201 Stainless Steel Long Tube Header and 3" Cat Kit Special order item.
View part
HOLDEN COMMODORE VT-VZ 5.7L GENIII TUNED 1 3/4" HEADER - CAT X 2 X 3" KIT (SKU.
View part
Exhaust Systems Australia Holden VE/VF 6L & 6.2L 13/4" 304 Stainless Steel Long Tube Header and 3" Cat Kit Special order item.
View part
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".
View partSend the vehicle make, model, year, engine, current issue, desired sound or performance goal, and clear photos of the existing exhaust where available.
