BM4585 centre muffler assembly is a direct-fit replacement exhaust component for selected Holden Commodore VS Sedans from 04/1995 to 08/1997 fitted with the 3.8L ECOTEC V6 and live rear axle suspension.
LIVE AXLE MODELS ONLY – WILL NOT FIT IRS (INDEPENDENT REAR SUSPENSION) MODELS.
Designed to replace the original centre muffler section, BM4585 provides factory-style fitment using the original exhaust mounting locations.
Please check availability and current lead time before ordering.
Large Item: Please contact us for freight charges before ordering.
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BM4585 centre muffler assembly is a direct-fit replacement exhaust component designed for selected Holden Commodore VS Sedans manufactured from 04/1995 to 08/1997 fitted with the naturally aspirated 3.8L ECOTEC V6 petrol engine and live rear axle suspension.
IMPORTANT: LIVE AXLE MODELS ONLY – BM4585 WILL NOT FIT VEHICLES WITH IRS (INDEPENDENT REAR SUSPENSION).
The VS Commodore was available with both live axle and independent rear suspension configurations. Most VS variants used the live rear axle, while Acclaim and SS sedans were fitted with IRS. Suspension type should therefore be confirmed before ordering.
BM4585 replaces the original centre muffler section of the exhaust system and is designed for factory-style fitment, making it suitable for replacement of a rusted, damaged or leaking original centre muffler assembly.
Please check availability and current lead time before ordering.
The VS Commodore sedan was produced from April 1995 to August 1997. The 3.8L L36 ECOTEC V6 produced 147kW and 304Nm.
Before removing the original exhaust, apply penetrating lubricant such as WD-40 to the exhaust fasteners. Lubricating the exhaust mounting rubbers will also make removal and installation easier.
Inspect the GMG100 front gasket, GMG093 rear gasket, GMR008 and GMR009 mounting rubbers during installation and replace deteriorated components where required.
Before installation, confirm that the vehicle has a live rear axle rather than independent rear suspension. The exhaust routing differs and BM4585 is not suitable for the IRS configuration.
After installation, check the complete exhaust system for adequate clearance from the body, suspension and surrounding components and check all connections for exhaust leaks.
BM4585 is intended as a direct-fit replacement exhaust component for the listed Holden Commodore VS Sedan 3.8L V6 live axle application. Correct vehicle and rear suspension identification is essential before ordering.
What vehicle does BM4585 fit?
BM4585 suits selected Holden Commodore VS Sedans from 04/1995 to 08/1997 fitted with the naturally aspirated 3.8L ECOTEC V6 and live rear axle suspension.
Does BM4585 fit an IRS VS Commodore?
No. BM4585 is designed for live axle models only and will not fit vehicles with independent rear suspension (IRS).
Did all VS Commodore Sedans have a live rear axle?
No. Rear suspension varied by model. Most VS variants used a live rear axle, while the Acclaim and SS sedans were equipped with IRS. Always confirm the rear suspension fitted to the vehicle before ordering.
Does BM4585 fit a VS Acclaim Sedan?
No. VS Acclaim sedans were equipped with independent rear suspension, while BM4585 is a live axle exhaust application.
Does BM4585 fit a VS Wagon?
No. This BM4585 listing is specifically for the applicable VS Sedan with live rear axle.
Is BM4585 a direct-fit replacement?
Yes. BM4585 is designed as a direct-fit replacement for the original centre muffler assembly on the listed live axle application.
Are the exhaust gaskets included?
GMG100 front and GMG093 rear exhaust gaskets are available separately. Inspect the existing gaskets during installation and replace where required.
Which mounting rubbers are used?
GMR008 and GMR009 are listed for this application and are available separately.
Can I pick up from the store?
Yes. Pick up is available but must be pre-arranged before collection.
How much is freight?
Freight varies depending on your delivery location and where stock is available. Please contact us for freight charges before ordering. Where possible, we can arrange dispatch from the nearest available product location to help reduce freight costs and delivery times.
Do you ship to the USA?
Yes. Best Mufflers regularly ships exhaust systems and exhaust parts to customers throughout the United States.
Please note that import duties, tariffs, taxes, and customs clearance fees are not included in the product or shipping price. Once your order is processed and the applicable charges are calculated, we will send you a secure payment link to finalise the import duties and tariff charges before dispatch.
For phone orders, advice, or part enquiries – contact us:
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🇦🇺 Best Mufflers
87A Planthurst Road, Carlton NSW 2218, Australia
Exhaust Systems Since 1983
Workshop hours: Mon–Fri 8:00am–5:00pm (By Appointment Only) | Phone and email enquiries welcome 24 hours
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