My car has many mods,so I am wondering whether to sell it the way it is,or I will get more $ by parting it out and selling bone stock car?

Here are pics:

http://www.xoutpost.com/bmw-sav-foru...much-more.html

What to expect for 2002 x5 3.0i with 87k miles ,serviced and in overall excellent condition for this year.