I believe Injen has instructions somewhere. I believe somebody posted a link to them a few days ago.. Check their site.
If I find it, I'll post a link.
Yea I have the install booklet and it says to remove 13-6mm bolts and 5 plastic clips and they show a picture with some holding the bumper just in front of the car, Thst's All Folk's.
mazdaspeed CAI install says through the wheel well.its not that bad as it looks use extensions and you have to break one clip to remove the shielding. its easy. its a 1 hour install if. if you need written instructions on how to pm me and the i can write them up when i get home from work. what model are you?