Just picked up my 07 GT and wanted to start on it right away. Looking for advice on the which brands to go with and who to stay away from. Looking for the best performance gains. Looking for things like, who has the best headers, exhaust for our cars should I do an x-pipe or an h-pipe, which gears work best, should I do pulleys and which cai kit should I use. Things like that. Any help would be much appreciated. My goal is to try to get the car into the mid 12 sec to low 12 sec range without a power adder. Thanks everybody....:SNSign: