I have one for sale with 16k miles on it. I never got to use because of dieselgate. I was going to compete in Gridlife Time Attack Series with my car in the next class up from the HPDE+ class I was in last year.
Send me a text 847-613-0969
Thats just a barrier to the heat it doesnt actually keep it in the exhaust. Hot exhaust flows faster than colder exhaust. You want the highest exhaust velocity possible before you start creating too much of a restriction.
Coating the piston tops, combustion chambers, valve faces and exhaust...
If she spots you out a bus length or lets you throw a tennis ball you might have a shot. If you want any chance you'll need a big shot of NOS and crank the fuel up with the evry mod. Probably have a tow truck ready at the end too.