[ajcolv]

My opinion would be that no CAI would be worth it at this stage. If you are stock or nearly stock, all CAI's will yield about the same hp. You would be better off investing in something that has been proven to be a better mod (not necessarily gets more hp, but better). I don't know what mods you have but look into gears, pullies, t/a, sfc's, or lca's.