I tried alot of different setups when I had my '89. One with the cone mounted on the funnel shaped rubber hose that is clamped to the throttle body. I put it in the fender, I put it where the air box was, I put it where the blower used to be. I could never tell a difference between any different setups, except that is climbed to higher revs a little bit easier. I drove the car on the interstate everyday to school and never could discern a difference in how it performed before or after the engine bay heated up. The best results I got were making my flex pipe intake tube perfectly straight, with the conical stock hose piece as the only curve. It hit the rev limiter easily, whereas with multiple bends it had chugged to it's upper limits. The tube I had looked fairly awkward when perfectly straight, but who gives a **** what the engine compartment car looks like. The intake there for when you're looking out the windshield.