Holden Commodore VT VX VY VU VZ V6 V8 Exhaust Flange Gasket GMG093 – 63mm

GMG093 exhaust flange gasket is an OE-quality replacement 2-bolt exhaust gasket used on selected Holden Commodore VT, VX, VY, VU and VZ models fitted with V6 and V8 engines.

Manufactured from a high-temperature gasket composite with an integrated steel fire ring, GMG093 provides a reliable seal between exhaust flanges while withstanding the high temperatures and repeated thermal cycling experienced in an exhaust system.

With a 63mm (2.50") centre opening and 105mm bolt-hole centres, GMG093 can also be used for other factory and performance exhaust applications where the flange dimensions correspond.

Key Features

• OE-quality replacement exhaust flange gasket
• 2-bolt flange design
• Suitable for selected Holden Commodore VT, VX, VY, VU and VZ applications
• Selected V6 and V8 exhaust systems
• 63mm (2.50") centre opening
• 105mm bolt-hole centres
• High-temperature composite construction
• Integrated steel fire ring
• Designed to provide a durable, leak-resistant exhaust flange seal
• Suitable for factory replacement and performance exhaust systems where dimensions match

Vehicle Applications

• Holden Commodore VT – selected V6 and V8 exhaust applications
• Holden Commodore VX – selected V6 and V8 exhaust applications
• Holden Commodore VY – selected V6 and V8 exhaust applications
• Holden Commodore VU Ute – selected V6 and V8 exhaust applications
• Holden Commodore VZ – selected V6 and V8 exhaust applications
• Other Vehicles: Suitable for additional applications using a compatible 63mm (2.50"), 2-bolt exhaust flange with 105mm bolt centres

Key Specifications

• Part Number: GMG093
• Gasket Type: 2-Bolt Exhaust Flange Gasket
• Centre Hole: 63mm (2.50")
• Bolt Hole Centres: 105mm
• Thickness: 1.8mm
• Fire Ring: Yes
• Material: High-temperature gasket composite with steel fire ring

Installation Notes

• Ensure both exhaust flange surfaces are clean, flat and free from old gasket material before installation.
• Check that the 63mm centre opening and 105mm bolt centres correspond with the exhaust flange before installation.
• Tighten flange fasteners evenly to ensure the gasket is compressed correctly.
• Replace damaged or badly corroded bolts, studs and nuts where required.
• For best results, install a new gasket whenever the exhaust flange joint is dismantled.

Recommended Products

• Exhaust Sealant – Product Code: 9AB
• Exhaust Bolts – Product Code: BOL-03-2
• Exhaust Studs – Product Code: TYS001
• Exhaust Studs – Product Code: MAS001

Frequently Asked Questions

Does GMG093 suit Holden Commodore VT, VX, VY, VU and VZ?
Yes. GMG093 is used on selected Holden Commodore VT, VX, VY, VU and VZ V6 and V8 exhaust applications. Exhaust configurations can vary between engines, models and aftermarket systems, so compare the gasket dimensions with your existing flange if you are unsure.

What size is the GMG093 gasket?
GMG093 has a 63mm (2.50") centre opening, 105mm bolt-hole centres and is approximately 1.8mm thick.

Will this gasket fit other vehicles?
Yes. GMG093 is used in various exhaust applications. Always compare the 63mm centre opening and 105mm bolt-hole centres with your original gasket or exhaust flange before ordering if your vehicle is not specifically listed.

Does this gasket include a fire ring?
Yes. GMG093 features an integrated steel fire ring to provide improved sealing durability under high exhaust temperatures.

Should I use sealant when installing this gasket?
The gasket is designed to seal between clean, flat exhaust flanges without additional sealant. Exhaust sealant may be used where appropriate on older or imperfect exhaust flange surfaces.

Can I reuse my old exhaust gasket?
We recommend replacing the gasket whenever the exhaust flange joint is dismantled to provide the best chance of a reliable, leak-free seal.

Can I pick up from the store?
Yes. Pick up is available but must be pre-arranged before collection.

How much is freight?
Regular post without tracking is included. If you require tracking or a faster delivery option, including Express Post, please select your preferred option during the checkout process.

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.

Customer Support

For phone orders, advice, or part enquiries – contact us: