I raced my friend from work last Saturday.
Me: 98 Civic LX (auto) (mods in the sig) -- minus the c/a/i
Him: 98 Civic HX (5 spd / stock)

By the time he went to shift to 2nd I was about 1 car length behind. ....and from there he just pulled away and I let off.

Last night w/ AEM c/a/i:
Same light, same direction, etc.....
he did spin the wheels a tad this time....
Shifting into 2nd my front bumper was about even with his door. So, he maybe had me by half a car length. He eventually got further ahead, but at 80 mph it was still pretty close.

I really didn't notice any gains with the c/a/i, but he was pretty surprised how I kept up with the 2nd time. He said he was on the gas just as hard each time.

I figured if I had my stockies on, I may have a chance to take him by a hair. What do you guys think?

I heard the HX is light as hell especially compared to my LX :(
I know the wheels have to play some kind of roll as well.

Just thought I'd let you guys know that I am very :) with my AEM c/a/i :)