Ok i read most of the info and i know long tubes will give me a better gain, but I dunno if it's possible to pass emissions with long tubes. I live in dallas right now and run about a 9.05 in the 1/8 mile. My mods are in my signature. What do you guys think I would run with lt's vs. mids vs. shortys? i'm trying to see first off it i can pass emission with long tubes and second would the gain actually be worth the extra money?