Is the STR145 a full exhaust or just the back section?

It's a cat-back, so only the section behind the catalytic converter is replaced. The cat and front pipework stay factory.

Will it suit my Holden Commodore?

It's listed to fit the Holden Commodore from 07/2006. Confirm your exact variant with the workshop before ordering.

The recommended retail price is $271.99. We confirm fitment before placing any order.

STR145

Redback Performance Exhaust System for Holden Commodore

Redback Performance Exhaust System.

BrandRedbackSWD

Category: Complete exhaust systems

RRP $271.99 AUD

In stock at supplier

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Redback Performance Exhaust System for Holden Commodore (07/2006 - 09/ product image

Part specs

Vehicle Make: Holden
Coating: Standard Heat-Proof Paint
Tube Size: 076mm (3")

The Redback STR145 cat-back exhaust is listed to fit the Holden Commodore from 07/2006. Carrying an RRP of $271.99, it is a rear-section swap that leaves the front of the exhaust and the catalytic converter as Holden fitted them.

What does fitting involve at our Illawarra workshop?

Oak Flats Muffler Men handles cat-backs like the STR145 in-house across the Illawarra. The job is straightforward in principle — drop the rear section, offer up the new run, and check the muffler and tailpipe clear the underbody and sit square in the hangers — but on a Commodore of this age the rubber mounts and rear flange can have perished, so we inspect those at the same time. We confirm the part matches your build before anything is bolted up.

What is a cat-back and where does it sit?

The cat-back is the run behind the catalytic converter: pipe, muffler and tailpipe as a single rear unit. Swapping it changes the back half of the system and the exhaust note without disturbing the cat or front pipework, which is why it is the less involved upgrade compared with a turbo-back or engine-back. Redback hasn't published a diameter or material for the STR145 on this listing, so we don't quote them; they're confirmed against the kit on the bench.

Will it suit my Commodore?

This listing covers the Holden Commodore from 07/2006. Fitment feed data can be imperfect, so it's listed to fit rather than guaranteed — give the workshop your exact engine and body and we'll check it against the STR145 before ordering.

Is it road legal?

Because it is a cat-back, the STR145 doesn't remove or alter the factory catalytic converter, so the original emissions hardware remains in place. Final road compliance and noise still depend on the specific car, so confirm NSW requirements with us before booking.

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

Common questions

Is the STR145 a full exhaust or just the back section?: It's a cat-back, so only the section behind the catalytic converter is replaced. The cat and front pipework stay factory.
Will it suit my Holden Commodore?: It's listed to fit the Holden Commodore from 07/2006. Confirm your exact variant with the workshop before ordering.
How much is it?: The recommended retail price is $271.99. We confirm fitment before placing any order.

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.

Book the right exhaust job without guessing.

Send the vehicle make, model, year, engine, current issue, desired sound or performance goal, and clear photos of the existing exhaust where available.

Unit 2/8 Shaban St, Albion Park Rail NSW 2527 02 4256 3740 sales@mufflermen.com.au Send vehicle details