What part of the 2012 Toyota Prius exhaust system are these?



I’m looking for info on where, on my car, these parts came from.

I found them loose and resting on the heat shield of the exhaust sys (around the area shown in photo). I assume they came from my car, and I would like to put them back. But I don’t know what they are, or where/how they are installed, or even if they are suppose to be 1 or 2 peices.



Probably around that oxygen sensor. A good muffler shop can do the job easily.

Good catch! Parts of heat shields usually end up orphaned on the highway.


Thats the catalytic converter heat shield.Don’t park on long dry grass because it can catch on fire. Get it replaced ASAP.


Those heat shields are from the front exhaust pipe farther up from view, they are there to retain heat in the pipe for cleaner emissions. Nothing to do with grass as you can see that there is no heat shield on the catalytic converter that is closer to the ground.


Shouldn’t there be one? That’s very hot and close to the ground. I haven’t seen a cat without a heat shield below it, except when it fell off my Civic years ago. I saw it in my rearview mirror as it slid to the edge of the pavement.


The underside of a Prius.



Is that common nowadays?