[boost til'bust]

you said you have an intake? do you have an aftermarket air filter, such as a k&N, because they are soaked with a silicome based product.

I highly doubt it is the heat that is the problem, they work better when they are hot, and I have had to heat some up with a torch to remove them, and they have not failed.

posible causes: silicone as you mentioned, usually comes from that coating that is on aftermarket filters.

if you bang the sensor at all, the inside element will break very easily, and if there is any stress on the wires to the sensor this can cause problems too.

coolant leak into the cylinder will clog the sensor, or even a really rich mixture can cause the sensor to clog and read slowly, causing a code.

the question is...when you say toasted? what does that mean? is there a code? what is the code, the code will tell you which of these is most likely.