I pulled the bumper off of the 458 Ferrari and this is what I saw. I noticed a burning smell coming from the car but could not determine what it was. Then I pulled the bumper. What do you think it is?

 

Interesting. Looks like it's melted the undercoat. Not sure what treatment the metal sub-bumper gets, but since it's only on the left side, I'm wondering if the left bank is running too rich. Maybe you're igniting unburned fuel. Stock exhaust? I'd contact dealer/FNA. Ferraris do have a tendency to crisp up. A LOT of heat back there. And, as fittings get brittle from heat cycling, they do fail. There have been some write-offs due to fires in F40s, along with others. Generally, though, I'm not aware of any 458s exhibiting this. You might also post over at F******Chat.com. Way more marque specific there, and plenty of knowledgeable folks there.

CW

 

Any follow up? So far, no comments on F******chat.com.

CW

 

Has now been suggested to me that this was the low-speed impact styrofoam that might have ignited such as in this video...


Also, I was corrected. High exhaust gas temps result from running LEAN and not rich. My bad.

CW