I got it out w/out removing the bumper, kind of a pain, but got it out.

sosodef24--Get an intake for the 90 CRX si, since that is what car you have. You can go for a different one, but you'd then have to relocate the battery. Alot of people get the 92-95 Si's for the 3" piping of the intake, but have to relocate the battery to the back of the car.