Originally Posted by SRT6_Roadster
Your test only shows that surface temp on the manifold has been decreased. How is your intake air temp compare pre and post install? How are your trap speeds on the drag strip pre & post install?
It's a road course, so no drag times. I also have a 180 degree t-stat. It definitely helped keep the internal temp lower and almost eliminate heat soak. My runs were very consistent and didn't lose any speed down the straight-aways. There are a lot smarter guys in that thread I posted who have used them at the drag strip and swear they are taking tenths off.