First things first,
If you dont like a new car you can always go and return it within 3 days or 150miles of purchase (which ever comes first) and for switching from Automatic to Manual would have never been a problem since Stealership wud have saved an extra $1000 by giving u a Manual Tranny car.
2) emm D17's or more easy for you wud be YOUR CIVIC ENGINE isnt meant to be bosted on stock internals ... Now ISNT MEANT doesnt mean that you CANT use force induction. its just that its not that reliable and you dont get that much power out of it after spending so much money ...
3) Read all the posts and topics within the FORCED INDUCTION and SWAP SUB FORUM ...
4) (ONLY IF YOU DONT UNDERSTAND A WORD OF WHAT PEOPLE ARE TALKING ABOUT IN THE ABOVE FORUM)

.... Trade your civic in for a RSX type S or some other car man ....