It may not be the best street tire, but I'm very pleased with my Conti ExtremeContact Sports. I got them from 4wheelonline last year, and their road performance is still awesome. The only negative I can say is that they are a bit stiff over bumps.
PMAS, JLT, Steeda and Cobb are some of the popular cold air intake kits. Just don't expect a tremendous performance gain if you don't get a tune. Currently, I have the stock intake but with an AEM dry filter. Power is still the same and no heat issues whatsoever.