Parts for your 2012 Honda Stream-Exhaust mount

2012 Honda Stream exhaust mount — purpose, care and when to replace

Yes, the 2012 Honda Stream uses exhaust mounts (often called exhaust hanger insulators). Technical references including the Honda Stream RN6–RN9 Service Manual (Exhaust System section) and the Honda electronic parts catalogue show multiple rubber hanger insulators supporting the mid‑pipe and muffler. Aftermarket catalogues for the Stream also list these insulators as service parts, confirming they’re fitted from factory.

The exhaust mounts do a deceptively big job. They suspend the exhaust off the underbody, keep the muffler and pipes aligned, and isolate vibration so there’s less droning in the cabin. By letting the system move a little while holding it in the right place, the mounts reduce stress on welds, flanges and the catalytic converter, especially over rough roads or when the engine rocks on its mounts.

On a 2012 Honda Stream, age and Aussie/Kiwi conditions can harden or crack the rubber. Coastal air, heat cycles, towing, speed humps and the odd gravel road all speed up wear. That’s why it’s smart to have the mounts checked at each service when the vehicle’s on a hoist. If any insulator looks perished, split, oil‑soaked or the exhaust seems to hang low, budget for replacement. Many techs treat them as a set item: if one’s gone, the others aren’t far behind.

Common signs it’s time to replace:

• Thumps, knocks or rattles from under the rear, especially on start‑up or over bumps
• Exhaust sitting crooked or tailpipe touching the bumper/heat shield
• Excessive movement when the exhaust is nudged by hand
• Visible cracks, splits or elongation of the rubber hangers

Replacement is straightforward with the car safely supported. Let the exhaust cool, support it with a jack stand, then slip the old hangers off the pegs. A spritz of silicone spray helps. Avoid petroleum grease on rubber. Fit quality OEM‑equivalent or polyurethane hangers (poly can firm up the system if towing, but may transmit a touch more vibration). Recheck clearances around heat shields, subframe and bumper, and ensure the tailpipe sits centred. After a short drive, re‑inspect for any contact or renewed rattles.

Keeping the mounts fresh protects the Stream’s exhaust from undue strain, keeps it quiet, and helps avoid cracked joints that can lead to leaks or failed inspections.

Popular questions about 2012 Honda Stream exhaust mounts

How many exhaust mounts does a 2012 Honda Stream have?
Most RN6–RN9 Streams use several rubber hangers (commonly three to five) from the mid‑pipe to the rear muffler. Exact count can vary with trim and market. A quick look underneath or a check of the Honda parts catalogue for the VIN will confirm the layout.

Can a home mechanic replace the exhaust mounts?
Yes, provided the vehicle is safely raised and supported. The job mostly involves slipping old rubber insulators off pegs and installing new ones. Work only on a cold exhaust, support the system so it doesn’t drop, and use silicone spray for ease. If any brackets are bent or there’s corrosion, it’s best left to a workshop.

How long do exhaust mounts last on a Stream?
Typically 5–10 years, but climate, road conditions and driving style matter. Vehicles near the coast or that do lots of short trips and heat cycles may need them sooner. Include a quick hanger check at every service and replace at the first signs of perishing or sagging.