tbh it wont really matter what panel filter you go for, just a personal preference between cotton gauze (green, k&N etc) and foam (pipercross, bmc etc).
also I wouldn't go for a K&N one just because I have heard that they are quite oily (well the cones are!) and could cause MAF failure
also I wouldn't go for a K&N one just because I have heard that they are quite oily (well the cones are!) and could cause MAF failure