I haven't heard hardly anything about the Injen, other than they are pretty expensive compared to other brands. I do, however, own a HotShot Cold Air intake for my 96 se-r, and I can say I'm very pleased with the results I got. The sound is great, way better the a CAI you hear on a Honda or Toyota. When I floor it, at high RPMS, the sound can actually become louder than my exhaust! I would personally still go with HotShot, but I am interested in seeing results from an InJen. Maybe go over and post on the sr20 forum and see if anyone has one on their car.