Cold air is what you want. Honestly the bumper didnt have to be removed but it made the install go smoothly. I think it is only this much of an ass pain in the integra.

Here is good instructions for the SI... not to hard really. I did it with like a total of 3 tools and 2hrs time.

http://students.db.erau.edu/~lazersos/car/civic_cai.html