[08GT4U]

you need a little back pressure in your exhaust.a straight pipe might have you loosing some botton power.2nd you need to get it tuned by a tuner.i saw a drop of 2tenth in the 1/8 by switching to 4.10.another thing you need to consider is weather,this time a year if you are in a hot place you are gonna loose about 2 to 3 thenths.humidity places a big factor in time as well.i ran 8.75 in december in 60 degree weather with bbk intake and 4.10s.yesterday i went to the track and with c&l racer intake,4.10s,cmdp and o/r x pipe i ran 8.75 as well but in 90 degree weather with like 60 humidity.