Originally Posted by sheikthin
hrm, how come with my 05 wrx, hks uppipe, catted down pipe and mid pipe, utec with somewhat of a road tune pushin peak 18psi and i can only seem to get 13.65@101 and no faster? my 60' times are around high 1.7 and low 1.8. am i shifting wrong? any ideas?
Your tune is probably off. How did you tune it? You probably need to lean out the A/F.