Parts for your 2010 Subaru Exiga-Exhaust mount

2010 Subaru Exiga exhaust mounts — what they do and when to replace them

Exhaust mounts (also called exhaust hanger rubbers or cushion rubbers) are absolutely used on the 2010 Subaru Exiga. Factory references including Subaru’s Global Service Manual for the YA-series Exiga and the Subaru FAST electronic parts catalogue show multiple rubber hangers and steel brackets supporting the front pipe, centre section and rear muffler. Those documents specify inspection and replacement of the hangers as part of exhaust system service, confirming they’re a relevant wear item on this model.

On a 2010 Exiga, the exhaust mounts suspend the exhaust under the car, isolating engine and road vibrations so the cabin stays quiet and rattle-free. They keep the pipework centred through heat cycles and rough Kiwi and Aussie roads, helping prevent stress cracks at flanges and welds. When the rubbers perish, stretch or tear, the exhaust can sag, knock on crossmembers, or put strain on the catalytic converter and mufflers.

• Common signs the mounts need attention:
  • Thud or rattle over bumps or at start-up
  • Exhaust visibly off-centre or sitting lower than usual
  • Perished, cracked, or oil-soaked rubber hangers
  • Vibration in the cabin at idle or on take-off

Good practice during regular servicing:

• At each service or WOF/roadworthy check, inspect every hanger and bracket for cracks, elongation and hardening. Replace in pairs if one is marginal.
• Look for shiny rub marks on the exhaust or chassis—these point to contact from a stretched hanger.
• Give the rubbers a quick clean and a light spritz of silicone to reduce binding during heat cycles (avoid petroleum grease on rubber).
• Confirm bracket bolts are snug and shields aren’t touching the muffler.

Replacement tips for the Exiga:

1. Work on a cold exhaust, safely supported. A little silicone spray helps slide the hangers off their pegs.
2. Support the muffler with a jack stand before removing the last mount.
3. Fit quality OEM-spec rubber for factory NVH, or polyurethane for extra support if towing or running an aftermarket system (note: poly can add a touch more vibration).
4. If the exhaust has been sagging, check flange gaskets and welds while you’re there.

Most Exigas will need new mounts once the originals have seen a decade-plus of heat and kilometres. Fresh hangers are inexpensive insurance against cracked pipes, annoying knocks, and failed inspections.

Popular questions about 2010 Subaru Exiga exhaust mounts

How often should the exhaust mounts be replaced?
There’s no strict kilometre interval in the factory manual, but many Exigas need hangers around the 10–15 year mark, or 120,000–180,000 km, depending on climate and use. Inspect at every service and replace at the first sign of cracking, sag or noise.

Can worn mounts damage the exhaust?
Yes. When hangers stretch or tear, the exhaust can load up flanges and welds, crack heat shields, and knock against the subframe. Replacing tired rubbers early helps avoid bigger exhaust repairs.

Are polyurethane hangers a good idea?
They can be for tow vehicles or cars with heavier aftermarket systems, as they resist heat and sag. Expect slightly more vibration at idle compared with soft OEM rubber—most owners find it minor on the Exiga.