You'll have to add a ecu remap, this is a MUST!
Skunk 2 Stage 2, Toda B (which I recommend) are great options
skunk2 stage 2, is that the pro series? how much can u gain out of these for stock k9?
With a thinner head gasket, around 5 - 10 whp with a ecu remap
what about with easy mods like
-AEM CAI
-aftermarket exhaust
-decat
-66mm tb
Worry about you ems before you even think of changing cams