Should the exhaust temp. at the dump be hot enough to melt plastic? I have a 94xj and took it up to RI this weekend (2 hr drive) and what i did was put shackles on it to get another inch, b/c of this i had to cut a few inches off the end of the tail pipe, causing the pipe to be aiming straight out the back of the jeep, and i have those two plastic blocks on my bumper, well it was lined up and after the trip i noticed it was completely melted. I always thought my engine ran hot b/c my other two xj's always ran on the cooler side of the 210 mark, but this one since i bought it has always run on the hotter side of the 210 mark. Now my exhaust is melting plastic. What do you guys think? normal or do i have a problem?