http://focusfanatics.com/forum/showthread.php?t=186377
and dont get a cosworth intake mani until your boosting over 15psi (not stock internals)
it kills torque on low boost and only adds a few hp.. def not worth $695. and a new TB is not recommended. on Focussports cars (396whp, 384whp, 240whp, etc) they use their stock throttle body. so again, not worth the $$$. apparenty only worth it to people with automatic trannys. and like said already, the CAI is not needed and would not be able to be used with the turbo setup..
if i were you.. id take that $1000 and put it into new stiffer shocks/struts, rear motor mount, poly front control arm bushings, and a focussport lower stress bar. that way youll have virtually NO wheelhop.
and also remember with the power from a stage 2 Focussport kit, youll need a new clutch/flywheel and it wouldnt hurt to do a differential swap at the same time to save money in the long run.