Right now my IS is completely stock, but I'm going to change that. I've had it just over a year now, so I'm getting that itch to start modding it. I just ordered the HKS Drager II exhaust, and I'd like to get an intake as well. Which one do you guys recomend? I was looking at injen, but I understand people have had problems with the CEL light coming on, and I don't want that.