Hey guys, i'm thinking about getting an FIPK. I was leaning towards AF1 cuz it looks the best and they all seem to be relatively the same. This site is the best place i've found so far to get it. But i was just wondering how easy is it to install? I couldn't imagine it being too hard. Is there a decent noticible increase in power? And has anybody put one of those screen bag covers that one of the L tuners sell on it? or is it fine with just the exposed filter? (also whats the website for it) Thanks for any info.

o yeah, how often do you have to recharge the filter?