Ok so i have compiled the list of things i plan on doing to the stock z6 i have. I need to know what all this is going to do for me in the end, as far as power goes.

skunk2 maniold
ZC pistons and rods
255cc injectors
B series Throttle body
Zex Valves, springs, and retainers
DC headers
Apexi turbo exhaust
Comp cam
and of course a vtec controller (maybe greddy?)

give me some ideas on how well this will work. thanks!