Parts for your 2023 Subaru Impreza-Exhaust mount

2023 Subaru Impreza exhaust mount — what it does and how to look after it

Yes, the 2023 Subaru Impreza absolutely uses exhaust mounts (also called exhaust hangers/insulators). Technical confirmation comes from the Subaru Service Manual for MY2023 Impreza (Exhaust section) and the Subaru Electronic Parts Catalogue (EPC), which both illustrate multiple rubber “exhaust pipe hanger” insulators and their brackets supporting the mid-pipe, resonator and rear muffler. Independent repair databases used in workshops across AU/NZ (e.g., Alldata and Mitchell 1) mirror these diagrams and procedures for the local models, so the part is relevant and fitted on this vehicle.

On the Impreza, exhaust mounts suspend the exhaust system from the body and subframes, isolating vibration and allowing a bit of movement so nothing bangs or stresses during acceleration, cornering, or over corrugations. They’re simple, tough rubber (or polyurethane) loops that keep the pipes aligned and quiet while the boxer engine does its thing.

As part of routine servicing, these mounts should get a quick look alongside the usual underbody checks. In Aussie and Kiwi conditions—coastal salt, heat, and the odd gravel road—they can harden, crack, or stretch over time. That leads to rattles, clunks over bumps, or the tailpipe sitting off-centre in the bumper cut-out.

• What to look for: cracks, tears, excessive sag, missing retainers, or shiny contact marks where the exhaust has been tapping the body or crossmember.
• When to replace: any time there’s visible damage or repeated knocking noises, otherwise, consider preventative replacement around the medium-term life of the car if the rubber looks perished.
• Replacement tips: support the exhaust with a jack and block of wood, swap one mount at a time, use silicone spray to slide the hangers, and refit bracket fasteners to the factory torque listed in the Subaru Service Manual. Avoid petroleum greases on rubber. If running an aftermarket system, firmer polyurethane hangers can help control movement but may pass a bit more vibration into the cabin.

For most Imprezas, there are several mounts from the mid-section back to the rear muffler. A quick check at each service interval (or at WOF/RWC time) keeps the exhaust quiet, correctly aligned, and stress-free on the gaskets and welds. Genuine or OEM-spec replacements fit best, and they’re inexpensive insurance against annoying knocks and a droopy tailpipe.

FAQs

How many exhaust mounts does a 2023 Subaru Impreza have?
Most trims use around four to six hangers depending on body style (hatch vs sedan) and exhaust layout. The Subaru EPC for MY2023 shows multiple insulators from the mid-pipe to the rear muffler. A quick look underneath or a check of the parts diagram will confirm the exact count for a specific car.

What are the signs an exhaust mount needs replacing?
Common tells include a rattling or thumping noise over bumps, the tailpipe sitting off-centre, visible cracks or splits in the rubber, and fresh scrape or polish marks where the exhaust has touched the body. If the exhaust looks low or shifts a lot by hand, the mounts are likely tired.

Is it safe to drive with a broken exhaust mount?
Short trips may be possible, but it’s not ideal. A failed mount can let the exhaust knock the body, strain flex joints and gaskets, or in a worst case, contact the road. It’s best to have it inspected and replaced promptly to protect the rest of the system.