Why is the STR173 dearer than other Commodore cat-backs?

It carries an RRP of $438, reflecting a more substantial rear assembly. It's still a cat-back, replacing the section behind the catalytic converter.

Will it fit my Holden Commodore?

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

Does it keep the catalytic converter?

Yes — the factory cat and front pipework stay in place.

STR173

Redback Performance Exhaust System for Holden Commodore

Redback Performance Exhaust System.

BrandRedbackSWD

Category: Complete exhaust systems

RRP $438.00 AUD

In stock at supplier

Request fitted quote Call the workshop

Afterpay, Zip Pay & Zip Money available

Redback Performance Exhaust System for Holden Commodore (07/2006 - 201 product image

Part specs

Tube Size: 063mm (2 1/2")
System Layout: Cat Back System
Material Type: 409 Stainless Steel
Muffler Option: With Centre & Rear Muffler
Exit: Twin Out
Fitting Time [min.]: 60
Coating: Standard Heat-Proof Paint
Vehicle Make: Holden

Redback STR173 is a cat-back exhaust listed to fit the Holden Commodore built from 07/2006. At an RRP of $438, it is among the more substantial pieces in this Redback range and replaces the rear of the system only.

Will the STR173 suit my Commodore?

This part is listed to fit the Holden Commodore from 07/2006 — the VE-onward era of the model. Body styles and engines varied across that run, so the listing is where matching begins rather than a guarantee that any given car is covered. Fitment data can be imperfect, so we treat the STR173 as listed to fit and check it against your actual vehicle; send the workshop your engine and body and we'll confirm before ordering.

What does a cat-back at this price include?

A cat-back is the rear of the exhaust behind the catalytic converter — pipe, muffler and tailpipe as one supplied section. The higher RRP here reflects a more substantial rear assembly, but the principle is the same: the cat and front plumbing stay factory and only the back half changes. Redback hasn't published the diameter or material for the STR173 on this listing, so we confirm those against the kit rather than quoting them.

Is it road legal?

Because the STR173 is a cat-back, it doesn't touch the catalytic converter, so the factory emissions hardware stays in place. Whether the finished car meets registration and noise rules still depends on the variant, so confirm NSW requirements with the workshop before booking.

What does fitting involve at our Illawarra workshop?

Oak Flats Muffler Men supplies and fits Redback cat-backs like the STR173 in-house across the Illawarra. We match the part to your Commodore, check the rear run clears the underbody and the hangers carry it square, and book the bay once the build is confirmed. At this price the part is often brought in to order, so check availability with us.

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

Common questions

Why is the STR173 dearer than other Commodore cat-backs?: It carries an RRP of $438, reflecting a more substantial rear assembly. It's still a cat-back, replacing the section behind the catalytic converter.
Will it fit my Holden Commodore?: It's listed to fit the Holden Commodore from 07/2006. Confirm your exact build with the workshop before ordering.
Does it keep the catalytic converter?: Yes — the factory cat and front pipework stay in place.

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