Parts for your 2011 Honda Civic-Exhaust mount

2011 Honda Civic exhaust-mount: purpose, care, and when to replace

Yes, the 2011 Honda Civic absolutely uses exhaust mounts (also called exhaust hangers or insulators). Technical sources including the Honda Civic 2006–2011 Service Manual, the Honda electronic parts catalogue, and aftermarket catalogues (e.g., Walker Exhaust) all show multiple rubber exhaust mounts supporting the front pipe, centre section, and rear muffler on this model. They isolate vibration, hold the exhaust at the right height and angle, and prevent knocks against the body and suspension.

On a 2011 Civic, exhaust mounts do the quiet achiever’s job: keeping noise, vibration, and harshness down while the engine and road do their thing. The rubber insulators allow a bit of controlled movement so thermal expansion and engine rock don’t crack welds or stress the flex joint. Properly seated mounts also keep the tailpipe neatly centred in the bumper cut-out, avoiding rattles and melted trim on long trips.

As part of regular servicing, it pays to eyeball the mounts. Look for perishing, cracks, elongation of the holes, or a sagging muffler. If there’s a thud over bumps, a tinny rattle at idle, or the tailpipe looks off-centre, a tired mount is a prime suspect. In coastal Aussie and Kiwi conditions, rubber can age faster, so an inspection every 20,000–30,000 kilometres or annually is a smart move.

• Common symptoms: knocking over bumps, new vibration or drone, exhaust sitting low, melted or marked bumper, visible splits in the rubber.
• Handy tips: a quick wiggle of the tailpipe should feel firm but cushioned—not sloppy or metal-on-metal.

Replacement is straightforward. Support the exhaust with a jack and a block of wood, spritz the old mount with silicone spray, and pry it off the pegs. Fit a quality, heat‑resistant rubber mount (genuine or reputable aftermarket), then check clearances around the subframe, heat shields, and rear bumper. If any brackets are rusty or bent, replace or straighten them before driving. Most Civics will get many years from their mounts, but by the 8–12 year mark they’re commonly due—especially the rear muffler insulator.

Left too long, failed mounts can stress the flex pipe, cause leaks, and knock out oxygen sensor readings. Swapping them early is cheaper than chasing exhaust repairs later.

• How many exhaust mounts does a 2011 Honda Civic have?
  Most 2011 Civics have three to five mounts depending on body style and market spec—typically one near the front pipe, one mid‑pipe, and one or two at the rear muffler. The exact count and shape vary by sedan/hatch and engine. The quickest way to confirm is checking the VIN against a Honda parts catalogue or inspecting under the car on a hoist.
• Can you drive with a broken exhaust mount?
  It’s not ideal. A missing or torn mount can let the exhaust bang on the body, strain the flex joint, or tweak alignment enough to cause a leak. A short, gentle trip to a workshop is usually fine, but it’s best to sort it promptly to avoid bigger costs.
• What does replacement usually cost?
  Rubber mounts are relatively inexpensive, often in the AUD/NZD $15–$45 range each depending on brand. Labour is typically 0.5–1.0 hour if hardware isn’t seized. DIY is very achievable with basic stands, a spanner set, silicone spray, and patience.