Parts for your 2015 Subaru Exiga-Exhaust mount

2015 Subaru Exiga exhaust mounts — what they do and when to replace them

Yes, the 2015 Subaru Exiga uses exhaust mounts. Technical sources that specify them include the Subaru Exiga/YA-series Factory Service Manual (Exhaust section), which shows multiple rubber hanger insulators supporting the front pipe, centre muffler and rear muffler, and Subaru’s FAST electronic parts catalogue, which lists OEM “Insulator – Exhaust” hangers for the Exiga platform. These mounts (also called hangers or insulators) are standard fitment on this vehicle.

On the Exiga, exhaust mounts are the small but mighty rubber insulators that suspend the exhaust under the car. They isolate vibration, keep the system centred in the tunnel, and prevent the mufflers and pipes from banging on the subframe or rear bumper. When they harden, crack or stretch, drivers often notice rattles over bumps, a thump on start-up, a droopy tailpipe, or a buzzy vibration through the cabin at idle.

For servicing, it’s smart to check the mounts any time the Exiga is on a hoist—at regular services, before long trips, or after a scrape, towing, or rough-road use. Look for perished rubber, splits around the peg holes, shiny contact marks on nearby heat shields, or excessive exhaust movement when gently pushed by hand. If one is shot, replace any adjacent mounts too, a fresh set keeps the system level and stress off the joints.

Replacement is straightforward with the exhaust supported: use penetrant or silicone spray on the pegs, lever the old insulator off, and slide a new OEM-quality or high-temp upgrade on. Always support the exhaust with a stand or jack and let it cool right down first. Refit any brackets using the factory torque specs from the service manual, and confirm there’s clear air around heat shields, crossmembers and the rear bumper cut-out.

• Inspect every service or 20,000 km, and immediately after any underbody impact.
• Replace if there’s cracking, elongation, or if the exhaust touches the body.
• For towing or rough roads, consider higher-durometer mounts to limit movement.

Keeping the Exiga’s exhaust mounts in good nick protects welds, gaskets and sensors, cuts cabin noise, and helps the flat-four sound like it should—without the unwanted soundtrack of knocks and rattles.

Popular questions

How often should exhaust mounts be replaced on a 2015 Subaru Exiga?
They don’t have a fixed lifespan, but many last 5–10 years depending on heat, load and road conditions. Inspect them at every service or 20,000 km. If the rubber is cracked, hard as a rock, or the exhaust sags or rattles, replace them sooner rather than later.

What are the signs an Exiga exhaust mount has failed?
Common signs include a metallic rattle over bumps, a thud on start-up or shut-down, the tailpipe sitting off-centre or too low, and new vibrations at idle. You might also spot fresh scuff marks on heat shields or the bumper cut-out where the exhaust has touched.

Can upgraded polyurethane mounts be used on an Exiga?
Yes—higher-durometer rubber or polyurethane mounts can help if the car tows, carries heavy loads, or runs a sportier exhaust. They reduce movement but may transmit a touch more vibration. For daily use, quality OEM-style rubber is usually the sweet spot.