Re: is every thing in our power train...
Teck-9, if you're so emotionally attached to this XF that you would not trade up to an SRT6, then I cannot understand how you are about to tear it apart, probably "f" it up, and have ongoing reliability problems. The n/a XF will still go 150mph which is fast enough to lose your license for a long time, if not kill you.
Take the advice of a lot of tuners and experienced XF drivers -- DON'T DO IT. Continue to enjoy your n/a XF and it's reliability and chick magnet appeal. Once you hack it up, value and driveability go way down. (But that makes mine more valuable!)
Talk your wealthy and gullible old man into buying you an SRT6 in rough shape and make that your science project. They can be had for $15k if you look hard enough and are willing to accept higher miles. That will be cheaper in the long run and you'll still have a classy XF to drive the rest of the time.
Oh...wait. You're 19 just like my son so you did not see a word I typed.