I already 3000 Pi converter,4.10's,Fipk,mac headers,american thunder cat,asp pulley's, and a rear seat delete. I ran this setup without the pulley and i got a 15.2 90 with a 2.21 60', but i didnt cool down the car at all. There was no spinning off the line. NOw that i gotta a job:D, I want these...