Parts for your 2016 Subaru Impreza-Exhaust mount

2016 Subaru Impreza Exhaust Mounts — What They Do and When to Replace

Exhaust mounts absolutely are used on the 2016 Subaru Impreza. Technical sources including the Subaru Factory Service Manual for the GJ/GP chassis (MY2016) and Subaru’s Electronic Parts Catalogue (FAST) show multiple “Insulator – Exhaust” rubber hangers and metal brackets supporting the front pipe, centre pipe, and rear muffler. Professional databases such as ALLDATA and Mitchell 1 also depict these mounts in their exhaust system diagrams for this model year.

On a 2016 Impreza, the exhaust mounts (often called hangers or insulators) suspend the exhaust under the car, isolating vibration and keeping the pipework and muffler correctly positioned. They let the system move a touch as the engine twists and the exhaust heats up, while preventing the tailpipe from knocking the body, heat shields, or rear bar. Good mounts mean less cabin drone, fewer rattles, and proper clearances to avoid heat damage.

Because they’re rubber, mounts can harden, crack, or stretch with age, heat, oil contamination, or a kerb strike. When they get tired, the exhaust can sag, sit off-centre, or clunk over bumps. It can also stress joints and flanges, which may lead to leaks down the track.

As part of regular servicing, it’s smart to inspect the exhaust mounts on every 10,000–15,000 km service or at least once a year—especially if the vehicle tows, sees rough roads, or runs an aftermarket exhaust. Look for perished rubber, splits, elongated holes, or shiny witness marks where the tailpipe has been touching the body.

• If a mount is cracked, oil-soaked, or stretched, replace it—ideally in pairs or sets so the system sits level.
• Choose quality OEM-style rubber insulators for factory feel, or a firmer polyurethane option if the car runs a heavier or performance exhaust (noting firmer mounts can pass a bit more vibration).
• Support the exhaust with a stand or strap before removing mounts. Use silicone spray to slip the old insulators off and the new ones on. Avoid petroleum-based lubricants that attack rubber.
• Refit brackets in the marked orientation, then confirm tip alignment and clearance to heat shields and the body. Tighten fasteners to the Subaru service manual specs and do a quick road test for knocks or buzzes.

Done right, fresh mounts keep the Impreza quiet, comfy, and free from annoying exhaust knocks for years.

How many exhaust mounts are on a 2016 Subaru Impreza?

Most 2016 Impreza models use around four to six rubber insulators, depending on body style (hatch or sedan) and exhaust layout. You’ll typically find them near the front/centre pipe and supporting the rear muffler. Always check the parts catalogue by VIN for the exact count and part numbers.

What are the signs an exhaust mount needs replacing?

Common giveaways are a tailpipe that sits low or off-centre, rattles at idle, thumps over bumps, or a mild drone that wasn’t there before. A quick look underneath may show cracked or perished rubber, or stretched holes where the hanger rod passes through.

Can polyurethane exhaust mounts be used on a 2016 Impreza?

Yes. Poly mounts offer firmer support and better durability under heat, great for heavier or performance exhausts. The trade-off is a slight increase in vibration transmitted into the cabin versus softer OEM-style rubber. Pick a durometer that suits your use.