Parts for your 2011 Mitsubishi Lancer-Exhaust mount

2011 Mitsubishi Lancer Exhaust Mount: What It Does and How to Look After It

The 2011 Mitsubishi Lancer absolutely uses exhaust mounts (also called exhaust hanger insulators). Mitsubishi’s factory Service Manual for the CJ-series Lancer (MY2008–2017) details multiple rubber mounting insulators that support the front pipe, centre section, and rear muffler. The Mitsubishi ASA/CAPS electronic parts catalogue for 2011 Lancer models lists “insulator, exhaust mounting” at several positions, and mainstream guides like the Haynes Lancer 2007–2017 manual describe inspecting and replacing these mounts during exhaust service. So yes—this part is fitted and relevant on a 2011 Lancer.

On the Lancer, exhaust mounts are the chunky rubber hangers that suspend the exhaust under the car. Their job is to hold the system in place, absorb vibration, and allow a bit of movement as the engine twists and the exhaust heats and cools. Good mounts keep things quiet, stop knocks over bumps, and help protect welds, flanges, and the catalytic converter from stress and cracking.

Because they’re rubber, they age. Heat, road grime, and time can make them hard, cracked, or stretched. When they start giving up, you might hear a thud on take-off, feel a rattle at idle, see the muffler sitting off-centre, or notice the tailpipe touching the bumper or heat shield.

• Inspection: During routine servicing (or every 10,000–15,000 km), have a look from front pipe to rear muffler. Check each mount for splits, glazing, or elongation. Make sure the metal hangers aren’t rusty where they pass through the rubber.
• Replacement: Support the exhaust with a stand or jack pad, then pop the old hangers off using exhaust-hanger pliers or a pry bar. A rubber-safe spray (silicone or soapy water) helps them slide. Swap one mount at a time so alignment stays true. If one is perished, the others aren’t far behind—replacing them as a set is smart.
• Aftercare: Confirm clearances around the subframe, rear bumper, and heat shields. Listen for knocks on a quick test drive. If an aftermarket exhaust is fitted, choose stiffer or polyurethane mounts to keep it neat and rattle-free.

It’s a small, inexpensive part that makes a big difference to comfort and longevity. Keeping the Lancer’s exhaust mounts fresh helps the whole system hang right, stay quiet, and last longer.

FAQs

How do I know my 2011 Lancer’s exhaust mounts need replacing?
Common clues include a dull thud over bumps or on take-off, rattling at idle, a tailpipe that sits crooked, or visible cracks and stretching in the rubber. If the muffler can be moved by hand more than a centimetre or two, the mounts may be tired.

Can I drive with worn exhaust mounts?
You can, but it’s not ideal. Excess movement can stress joints and welds, cause annoying rattles, and in the worst case let the exhaust contact the body or drop. Replacing the mounts promptly is cheap insurance.

Are polyurethane mounts worth it on a Lancer?
For a stock daily, fresh OEM-style rubber is usually perfect. If the car has a heavier or performance exhaust, polyurethane or heavy-duty mounts can reduce movement and keep clearances tidy, though they may transmit a touch more vibration.