I've seen this hinted at and discussed some in a few posts. I have a 2.0 koup and when accelerating it tends to lag specially if the rpms drop then I try to accelerate. An example if I hit around 40 then let off the gas and the rpms drop and then I hit it again it takes 2 sec or so to respond. I was told to change to a light weight pulley and that should help. Can anyone explain what the deal is. It was actually a little scary when I was pulling into traffic and trying to accelerate out of the way of oncoming traffic and it lags. I really dont feeling like getting squished because or crap engineering. Please help if at all possible.