Not familiar with the Z's need some help spending money!

Fang

I am a true modder from the Cobra scene and I am not familiar with the mods for these and I am tuning in here to see if you guys are a help. Most of us modders stick tight as we all need help from each other. This is the deal. I am looking into getting my father in law in an intake and a programmer that can give him a few extra hp. Then on to the exhaust. First of all I was looking at the K&N typhoon here and then the Stillen. Looks to me like the K&N is a lot easier install. Is it a pretty close hp gain between the two? Also, the only programmer I saw here for a quick in the box tune was the Bully Dog. Any others you would recommend? Thanks for any help you can give me. Yes I have looked around for a while to see what is there.