I bought a used 97 CRV about 6 months ago and im looking to spend a bit of money on it to make it more enjoyable for me and my girlfriend.

Its an automatic unfortunantly, with 174km, but I would still like to add some horsepower to it.

Any recommendations?
I plan on adding AEM cold air intake, custom catback exhaust 2 3/4" piping with highflow cat. I had those done on my 240sx and was very pleased with the results for the price. How much does a tranny cooler cost and is it worth it? I would like the suspension to be a bit tighter...

I also want to put 16" rims and bigger rubber... is this possible? What are the rim/rubber combinations i can use?

Im aware of the head problem on the b20... i have had my valves adjusted already... Is there a particular head i should replace it with? Could i add vtech just by replacing the head(I'm not that mechanicaly inclined)?