Parts for your 2016 Holden Commodore-Exhaust mount

2016 Holden Commodore exhaust mount: what it does and when to replace it

Yes, the 2016 Holden Commodore uses exhaust mounts (also called exhaust hangers or insulators). This is documented in the Holden/GM Global Service Information for VF Commodore procedures covering exhaust removal and rear muffler replacement, which reference the rubber hangers/insulators that support the system. The Holden Electronic Parts Catalogue (EPC) for VF Series I/II lists “Hanger—Exhaust/Insulator” across V6 and V8 variants, and independent repair guides such as the Haynes manual for VE/VF Commodore detail refit steps using these mounts. These technical sources confirm the part is relevant and fitted to the vehicle.

On a 2016 Commodore, the exhaust mounts are the small but mighty rubber insulators that suspend the pipes and mufflers under the car. Their job is to hold the exhaust at the correct height and alignment, soak up vibration so the cabin stays quiet, and allow a bit of movement as the system heats up and cools down. Good mounts stop knocks and rattles over bumps, prevent the tailpipe from kissing the bumper, and help protect welds, cats and sensors from stress.

As part of routine servicing, it’s smart to eyeball the mounts. After years of heat cycles, road grime and a few spirited drives, they can harden, crack or stretch. Common signs they’re past it:

• Rattles, thumps or a metallic clunk on take-off, over speed humps or when shutting the car down
• Sagging tailpipe, off-centre tips, or the muffler touching heat shields or the rear bar
• More vibration or droning in the cabin, sometimes with a faint hot rubber smell

Replacement is straightforward with the car safely supported. Back the exhaust with a jack and timber block, spritz the old rubbers with silicone spray, then slide them off the pegs. Swap like-for-like mounts—sedan, wagon and bi‑modal V8 systems may use different insulators and bracket positions—then refit and check clearances around the crossmember, cradle and bumper. If one mount has failed, doing them in pairs helps keep the system sitting even. Avoid forcing alignment with tension, the exhaust should sit naturally in the rubbers. Tighten any bracket hardware to the factory spec and recheck after a short drive.

Quality matters here. OE or OE‑equivalent heat‑resistant rubber mounts last longer, particularly on V8s that run hotter. Many owners find they need attention around the 80,000–150,000 km mark, or sooner if the car has seen rough roads or an aftermarket exhaust.

Technical sources referenced: Holden/GM Global Service Information (VF Commodore) – Exhaust System Description and Operation, Rear Muffler Replacement procedures. Holden Electronic Parts Catalogue (VF Series I/II) – Group listing for Hanger/Insulator, Exhaust. Haynes Repair Manual: Holden Commodore VE & VF (2006–2017), Exhaust system chapter.

Popular questions

How do you tell if the Commodore’s exhaust mounts are shot?

Listen for a rattle or dull thud as the car takes off, hits a bump or shuts down, and look for droopy or off‑centre tailpipes. If the muffler or pipe is touching a heat shield or the rear bar, or you can move the system by hand more than a centimetre or so at the tip, the rubbers are likely perished or stretched.

Can universal exhaust hangers be used, or should it be genuine parts?

Universal rubbers can work in a pinch, but the best fit and longevity usually come from OE or OE‑equivalent mounts matched to the VF’s peg size and geometry. This is especially true on performance V8s or bi‑modal systems, where heat and weight are higher and clearances are tighter.

Do bi‑modal V8 models use different mounts?

Bi‑modal (dual‑mode) exhaust cars can have different rear muffler mass and bracket layouts, and may specify firmer or differently shaped insulators to manage the load and tip alignment. Check the VIN‑based parts listing or compare the old mount’s profile before ordering.