
Redback Performance Headers and 2.5" Exhaust System for Holden Commodore
Redback ExhaustsRRP$2613.75Redback Performance Headers and 2.5" Exhaust System.
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Redback Redback Manifold Catalytic Converter.
Category: Extractors and headers


The Redback CGM0005 is a manifold catalytic converter listed to fit the Holden Astra from 2006. It's an emissions-control replacement for the factory cat, not a performance exhaust part.
A manifold catalytic converter is the cat positioned close to the exhaust manifold, where it heats quickly and starts cleaning the exhaust gas efficiently soon after a cold start. On the Astra it's the emissions device the car was certified with, packaged near the engine for that fast light-off. The CGM0005 is a replacement for that original unit — you fit it when the factory cat has aged or failed, to bring the exhaust back to its intended condition. It isn't a part you add to change the car's sound or output; its role is purely to keep the emissions system doing what it was designed to do.
The CGM0005 is listed to fit the Holden Astra from 2006. The Astra was sold in more than one engine specification, so cat fitment can come down to the exact variant you run. Treat the listing as a starting point and let us confirm the CGM0005 is right for your Astra before it's ordered in.
The catalytic converter is part of the emissions equipment your Astra was built and certified with, so a failed cat can affect how the car runs and how it presents at inspection. Fitting a correct replacement restores that function. We make no approval claim beyond that — confirm any specific requirements for your vehicle and state with us.
Oak Flats Muffler Men supplies and fits the CGM0005 in-house across the Illawarra, on the hoist where the manifold-area fasteners and oxygen-sensor bungs can be handled correctly. We check the flanges and seals before fitting. At $995 RRP it's quoted against your specific Astra.
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.
Send the vehicle make, model, year, engine, current issue, desired sound or performance goal, and clear photos of the existing exhaust where available.