Parts for your 2011 Subaru Impreza-Exhaust mount

2011 Subaru Impreza Exhaust Mounts

Yes, the 2011 Subaru Impreza uses exhaust mounts (also called exhaust hangers or rubber insulators). This isn’t guesswork—Subaru’s factory service manual for the 2011 Impreza details removal and installation steps that specifically involve the rubber hanger cushions on the front pipe, mid‑section and rear muffler. Subaru’s official parts catalogue for the GE/GH/GR chassis likewise lists multiple rubber exhaust hanger insulators and their brackets across the system. Well-known workshop references (Gregory’s and Haynes) also show the Impreza’s exhaust being supported on rubber mounts to isolate vibration and hold the pipework in the correct position.

The purpose of an exhaust mount is simple but important: it holds the exhaust in place while allowing a bit of movement. Those rubber cushions soak up vibration so less buzz reaches the cabin, keep the muffler and tailpipe centred in the bumper cut-out, and let the system expand and contract with heat without cracking welds or stressing flanges. On an AWD Impreza, proper mounting also prevents the exhaust from tapping the rear subframe, diff housing, or heat shields on rough roads.

As part of routine servicing, it’s smart to eyeball the mounts every 10,000–20,000 km or at least once a year. Look for cracking, splits, glazing or rock-hard rubber, and elongated holes that let the exhaust droop. Check the steel hanger rods for rust and make sure brackets are tight. A quick spray of silicone or soapy water helps during inspection or refitting, and a dab of high-temp anti-seize on bolts makes the next service easier. If one mount is perished, consider replacing the set—keeping tension even across the system avoids future rattles.

When replacing, OEM-style rubber is a great everyday choice for comfort. Polyurethane hangers are firmer and suit performance setups, but they can pass a touch more vibration into the cabin. Always support the exhaust before pulling a mount, confirm there’s at least a finger’s clearance around heat shields and the bumper, and recheck after a heat cycle. If unsure on torque values for brackets and flange hardware, refer to the Subaru service manual.

• Typical symptoms of tired mounts: knocking over bumps, a rattle at idle, a tailpipe sitting off-centre, or the muffler touching a heat shield.

Popular questions about 2011 Subaru Impreza exhaust mounts

How many exhaust mounts does a 2011 Impreza have?
Most 2011 Impreza models run three to five rubber hangers: one near the front pipe support, one around the centre/resonator, and two at the rear muffler. Variants with different mufflers or cat‑back setups may have an extra hanger or bracket, but the idea’s the same—spread the load and control movement.

When should the exhaust mounts be replaced?
There’s no fixed kilometre interval, but if the rubber is cracked, hardened, or stretched—or you hear knocking or see the tailpipe sitting skew-whiff—it’s time. In Aussie and Kiwi conditions, heat and coastal air can age them faster, many owners swap them proactively around the 8–12 year mark.

Can firmer aftermarket hangers help?
Yes. Polyurethane or “stiff” rubber hangers reduce exhaust movement and can help stop bumper contact on rough roads or with larger mufflers. The trade-off is a slight increase in cabin vibration. For daily drivers, fresh OEM-style rubber is usually the sweet spot.