The Spray bar for your intercooler is for Extreme heat situations, and it will cost you more then geting a nice front mount intercooler, I got one off of a turbo probe, it was 30.00 at a yard, and it was for a V6 with a larger turbo then I am going to use, I was told by many people that it will cool it plenty. Aftermarket coolers are only about 200.00, and look sweet, so think about saving to get one, I know I am going to... Also some kits I have seen come with 2 larger injectors, but from what I have learned, its not such a good idea, because it does not distribute evenly to the 4 cylenders, its just like puting an extra injector into your intake. NOT RECOMENDED, depending on your setup, (how much PSI you will be running), I would say go for 4 new larger injectors and see how that works, and depending on if that works good or not, then look into upgrading the pump, walboro sells a pump that can be used as in tank or inline, so that might be your best bet.

What size motor is in this 91 Prelude and what is in your Prelude?

I will go with Uberdata, I just need to research it more. So your saying I can hook the unit to my computer, and program the fuel maps, and then stick it back in my car? Is this programing somthing that I could do? Or would I have to take it to a shop?