hello, im looking into getting some headers and a midpipe within the next few weeks for my 2010 GT. ive done some reading and it seems that longtube headers are the way to go for the biggest power gains. im also interested in an H pipe as far as the midpipe goes, seeing as how i would prefer more of a deep sound. my question is what would be a good setup to go with as for as brand and who to order from? thanks.