which is the most effective intake/header setup out there? has any reasearch been done on different combinations? I'm thinking about Stillen/Hot Shot. Also, does anyone know if hot shot's CAI sucks in water? Cuz that was a rather big problem i ran into with my previous car...

Hot Shot on the header...you may want to check the archives on this...plenty of discussion here and there. If not goto www.se-r.net and check the archives...For the water issue, some people run a bypass valve on their CAI