I got my injen IS2100 last night and was wondering if I would have trouble doing this myself or not.I have done some stuff to cars before but nothing like this on a new car.Anyone have suggestions?

take out the battery! It will make your life a lot easier. Also be careful with the MAF sensor. Other then that its easy.

what danger said.....follow the instructions, and TAKE OUT THE BATERY fo shizzle!

^^

Everything they said, just make sure you have your ratchet extensions to get down inside the stock airbox. You'll be surprised at how easy it is.