Parts for your 2016 Holden Colorado-Exhaust mount

2016 Holden Colorado exhaust mounts — what they do and how to look after them

Yes, an exhaust-mount (often called an exhaust hanger or insulator) is used on the 2016 Holden Colorado. Technical documentation backs this up: the GM Holden RG Colorado Service Information (Exhaust System sections for 2012–2016) specifies multiple “exhaust mounting insulators” that support the intermediate pipe, muffler and tailpipe, and the Holden/GM electronic parts catalogue lists these insulators and brackets as serviceable items. The platform-sharing Isuzu D‑Max workshop literature of the same era shows an equivalent hanger layout, reinforcing that the Colorado’s exhaust is suspended by rubber mounts rather than being hard-fixed to the chassis.

On the 2016 Colorado, the exhaust mounts are the small but mighty bits of rubber and steel that hold the exhaust up and keep it from thumping the body or drivetrain. Their job is to carry the weight of the system while isolating vibration, keeping heat and moving parts away from the body, and allowing just enough movement for the exhaust to expand and shift on rough roads. That balance matters on a ute that tows, works hard and sees plenty of corrugations.

Over time the rubber can harden, crack, or tear, and the steel brackets can corrode. That’s when owners start to notice clunks over bumps, a buzz at idle, a tailpipe that sits wonky in the bumper cut-out, or even a mild rattle on start-up and shutdown. During routine servicing, it pays to throw an eye over every mount from the downpipe back.

• Look for perished or split rubber, excessive sag, or shiny contact marks where the exhaust has touched the body or crossmembers.
• Check bracket condition and welds, especially on vehicles that see beach work or outback roads.
• If one mount has failed, consider replacing the nearby mounts as a set to keep the system sitting true.
• Support the exhaust before removing any hanger, follow the GM torque guidance when refitting brackets in the Colorado workshop manual.
• Stick with OE-spec rubber for best NVH. Polyurethane can be tougher for off-road use but may feed more vibration into the cabin.

A light silicone spray can help slide new insulators on and won’t attack the rubber. Avoid cable ties or wire “fixes” — they can transfer heat and vibration where you don’t want it. If the ute’s had a lift, a towbar change, or an aftermarket exhaust, it’s worth re-checking clearances and mount angles after the work. Fresh, correctly fitted mounts keep the Colorado quiet, comfortable and compliant on the road and the track.

Popular questions about 2016 Holden Colorado exhaust mounts

How many exhaust mounts does a 2016 Colorado have?
It varies with cab style and exhaust configuration, but expect several hangers spread from the front pipe to the tail section. The GM parts catalogue and service manual illustrations show multiple insulators supporting the intermediate pipe, main muffler and rear section. A quick underbody inspection will confirm the exact count on a given ute.

What are the tell-tale signs an exhaust mount needs replacing?
Common giveaways include a droopy or misaligned tailpipe, knocking over speed humps, new vibrations at idle, or a buzz when starting or shutting the engine off. If the rubber looks cracked or glossy-hard, or there are fresh rub marks near heat shields or crossmembers, the mount is likely due.

Are tougher aftermarket mounts worth it for off-road work?
Heavier-duty or polyurethane mounts can add durability when the exhaust cops a hiding, but they usually transmit a bit more vibration into the cabin. For daily driving and towing, OE-style rubber insulators generally give the best comfort. If going heavy-duty, inspect more often and be prepared for a firmer feel.