Parts for your 2011 Subaru Forester-Exhaust mount

2011 Subaru Forester Exhaust Mount (Hanger/Insulator) — What It Does and How to Look After It

Yes, the 2011 Subaru Forester uses exhaust mounts (also called exhaust hangers or insulators). This is backed by Subaru’s Factory Service Manual for the SH-series Forester (MY2011) in the Exhaust System section, which details the muffler and centre pipe supported by rubber “insulators.” The Subaru electronic parts catalogue for the same model also lists multiple “Insulator – Exhaust” pieces positioned along the centre pipe and rear muffler. So, an exhaust-mount is absolutely relevant and fitted from factory on this vehicle.

On a 2011 Forester, the exhaust mounts are the tough rubber pieces that suspend the exhaust under the car, isolating engine and road vibration while keeping the pipework aligned. They stop the muffler clunking the body, protect welds and gaskets from stress, and help the system expand and contract with heat without binding. If the mounts perish, stretch or split, the exhaust can droop, rattle over bumps, or buzz at idle. Left too long, that can crack brackets, strain flanges, or wear holes in the system.

As part of regular servicing, it’s smart to give the exhaust mounts a quick once-over every 10,000–15,000 km, or whenever the car’s on a hoist. Look for cracks, shiny rub marks, excessive sag, or oil-soaked rubber. A torch and a small pry with a screwdriver will show up excessive play. If one mount is failing, replacing them as a set in that section helps keep the exhaust sitting square.

• Replacement tips:
  • Support the exhaust with a stand before pulling a mount off.
  • Use silicone spray to slide old mounts off and new ones on.
  • Check the metal hanger pegs and brackets for rust or bends, tidy them up before refit.
  • Avoid pre-loading: the exhaust should hang naturally in the rubbers.
  • Consider OE-style rubber for comfort, firmer aftermarket/poly can add cabin vibration.

Typical lifespan varies with heat, road grime and towing, but many original mounts are tired by the 8–12 year mark. If there’s a rattle on cold start, a thud over speed bumps, or the tip is sitting wonky in the bumper cut-out, the mounts are prime suspects. Keeping them fresh saves chasing leaks and knocks later, and keeps the Forester feeling tight and quiet.

Popular questions about 2011 Subaru Forester exhaust mounts

How many exhaust mounts are on a 2011 Forester and where are they?
Most SH Foresters run multiple rubber mounts: typically two at the rear muffler and one or more along the centre pipe. Exact count can vary with trim and market, but you’ll find them wherever the pipe changes direction or near heavy components like the muffler.

What are the signs the exhaust mounts need replacing?
Common signs include a drooping or off-centre tailpipe, knocking over bumps, buzzing at idle, and visible cracks in the rubber. If the exhaust hits the subframe or towbar on take-off or over corrugations, the mounts are often the culprit.

Is it safe to drive with a broken exhaust mount?
Short trips might be possible, but it’s not ideal. A loose exhaust can stress flanges, break welds, and even contact heat-sensitive parts. It’s best to sort it promptly to avoid bigger repair bills and annoying noises.