Its my understanding, that if you can keep the heat in the exhaust as long as posible,(like 2 ft past the turbo), you make the most power as well as protecting vitals and keeping the intake charge cool. I had thermo-tec wrap on a small block set of headers and did the same thing Dave...grabbed the collector after a good run to see if it really worked. Amazing. The biggest problem with heat wrap though is the astetics. For true, performance people, that isnt an issue, but for most street guys, looks are just as, if not more important.

That isnt the issue with Alex though. Right now the plan is to get him his ride back and progress from there. Everyone knows these cars are NEVER done.

On a seperate note.....did you hear that most of the big hp pro cars (1200 and up) are actually running smaller (read 3.5" vs. 4-5") exhaust to increase exhaust velocity? I'm talking to some people to learn more about it. Let you know what I find..... make sense though....any thoughts?