holden-commodore-vf-bi-modal-1-3-4-header-system

Holden Commodore VF Bi Modal 1 3/4" Header System Special order item

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.

DistributorExhaust Systems Australia

Category: Extractors and headers

RRP $2399.00 AUD
Confirmed on order
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Holden Commodore VF Bi Modal 1 3/4" Header System **** Special Order Item **** product image

Part specs

SKU
holden-commodore-vf-bi-modal-1-3-4-header-system
Supplier
Exhaust Systems Australia
Category
Extractors and headers
Stock status
Confirmed on order

The Exhaust Systems Australia HOLDEN-COMMODORE-VF-BI-MODAL-1-3-4-HEADER-SYSTEM is a bi-modal header system listed to fit the Holden Commodore VF. It runs a 1-3/4in primary, is valved, and is a special-order item.

What are headers and what is a bi-modal system?

Headers, also called extractors, replace the cast factory manifolds with tubular runners from each cylinder. Bi-modal means the system is valved: it can switch between two states, typically a quieter path and a more open one, so the exhaust note changes depending on which mode the valve is in. That makes it a more involved system than a fixed header kit.

What does the 1-3/4in primary tell us?

This system runs a 1-3/4in primary, the header tube size carried in its part number, with the catalogue diameter on record reading 4in for how that size is coded on these VF systems. The primary size is the figure to work from when matching the rest of the system. The material isn't published in the listing, so the workshop confirms that detail with you.

Will it suit my Holden Commodore VF?

It's listed to fit the Holden Commodore VF. Because this is a valved, bi-modal system, it's a more complex fitment than a plain header kit, so confirm your exact model and engine with the workshop before ordering. As a special-order item it's brought in to order, so plan the timing in.

What does fitting involve at our Illawarra workshop?

Oak Flats Muffler Men fits bi-modal header systems like this in-house across the Illawarra. The job means access to drop the factory manifolds, fresh gaskets, and setting up the valved section so it operates as intended. Supplied by Exhaust Systems Australia at $2,399.00 AUD as a special order; send your VF's details and we'll confirm the fit and book the bay.

Stocked and fitted by Oak Flats Muffler Men, the Illawarra exhaust and 4x4 specialist in Oak Flats, NSW.

Common questions

What does the HOLDEN-COMMODORE-VF-BI-MODAL-1-3-4-HEADER-SYSTEM fit?
It's listed to fit the Holden Commodore VF, with a 1-3/4in primary. Confirm your exact model with the workshop before ordering.
What does bi-modal mean?
It's a valved system that switches between two states, changing the exhaust note depending on the mode. The workshop sets up the valved section at fitting.

Fitment support across the Illawarra

Fitment checks near you across 18 Illawarra suburbs, from Oak Flats and Shellharbour to Wollongong and Kiama.
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Send the vehicle make, model, year, engine, current issue, desired sound or performance goal, and clear photos of the existing exhaust where available.