I was at the track last week with my stock gsr and my best time was 15.9@88mph, it was a very hot night about 26 Degrees Celcius.

Today i went back on a much colder day (20 Deg) and with an aem cai installed and i surpisingly Ran 1/4 15.33 @ 93.5 mph with a 1/8 of 10.03. I cant believe the diffrence!! My question is: Do you think the aem or the air temperature played the bigger role?? Also the track is about 100ft above sea level.

Thanx,

CAI probably made the bigger difference. But it's kinda a tricky question because of the fact that it's colder and you had just installed something to pick that 'cold air' up. Know what I mean?