Ok so I was at the track today and ran some really crappy times. I have a 95 auto with a test pipe, cat-back and intake. I had a 2.47 60' and a 16.09 1/4 time. WHY? I've seen a 99 auto run a 15.1 with just y-pipe and intake? Someone please help!

 

I think its your knock sensor. Does the tach climb strong and smoove, or does it have little bumps sometimes?

 

It's pretty smooth......i get wierd throttle response sometimes...like ill put it to the floor and it wont go WOT, didnt happen at the track..but its wierd..my low end is missing a little but my high end ALOT...