Parts for your 2016 Honda Civic-Exhaust mount

2016 Honda Civic exhaust mounts — what they do and when to replace them

Exhaust mounts are absolutely used on the 2016 Honda Civic. Technical sources including the Honda 2016 Civic (FC/FK) Service Manual — Exhaust System (Muffler/Exhaust Pipe Removal/Installation) and the Honda Electronic Parts Catalogue (EPC) list multiple rubber “exhaust insulator” mounts supporting the centre pipe and rear muffler. Industry databases such as ALLDATA and Mitchell 1 also specify removing/refitting the exhaust rubber hangers during exhaust service, which confirms they’re standard fitment.

On this Civic, the exhaust mounts (also called hangers or insulators) are the tough rubber donuts that suspend the exhaust from the chassis. Their job is to hold the system at the right height and angle while soaking up vibration and movement. That keeps the tip centred in the bumper cut-out, prevents knocks against the subframe or heat shields, and tames droning in the cabin. They also allow a bit of give for engine rock and thermal expansion, so the pipework isn’t under constant stress.

Good mounts mean a quieter ride and less chance of cracked welds. Over time, heat, road grime, and coastal air in Aus and NZ can harden or crack the rubber. Turbo 1.5L models run hotter around the rear section, which can age the mounts quicker. It’s smart to check them at each service interval (around 10,000–15,000 km) or whenever the exhaust is off the car.

• Signs they’re tired: sagging tailpipe, metallic thumps over bumps, rattles at idle, or the tip sitting off-centre.
• Inspection tips: look for splits, glazing/hardening, or elongated holes, also check the metal hangers and brackets for rust.

Replacement is straightforward: support the exhaust on a stand, spray the hangers with silicone or penetrant, lever the old rubbers off, and fit like-for-like quality mounts. Avoid jacking the exhaust by the muffler alone. Refit brackets and tighten fasteners to the Honda service manual specs. If one mount is perished, consider doing the set so the system sits evenly. Polyurethane mounts hold firmer but can send a bit more vibration into the cabin, for daily use, OEM-style rubber is typically the sweet spot.

Time-wise, a tech on a hoist can usually swap a set in under an hour. The parts aren’t dear, and they’ll save headaches by keeping the Civic’s exhaust where it belongs.

How many exhaust mounts does a 2016 Honda Civic have?

Most AU/NZ-delivered 2016 Civics have three to four rubber mounts, depending on body style and trim. Sedans and hatches commonly have one along the centre section and two or more at the rear muffler. Aftermarket exhausts may add or relocate hangers, so a quick look under the car is best.

How often should the exhaust mounts be replaced?

There’s no fixed interval. Inspect them at every service. Many last 5–10 years, but heat, towing, rough roads, and salty coastal air can shorten their life. Replace at the first signs of cracking, hardening, or sagging to protect the exhaust and avoid knocks.

Are polyurethane exhaust mounts a good idea on a daily-driven 2016 Civic?

They’re great for firmer control on performance builds and can help with heavier aftermarket systems. For everyday use, OEM-quality rubber keeps noise and vibration down while still supporting the exhaust well. It’s a trade-off between refinement and rigidity.