I have a 02 wrx sedan, and its composed of u-tec piggy back chip, up-pipe, down-pipe, turbo back exhaust, basically a stage 2 pushing 15-16 psi. I can only push out a horrible 14.6 in a quarter mile. My launching skills are decent with a r/t of .081, but I dont know why Im only running at horrible 14.6!!!! maybe a problem with the car??