looking for speedo healer and o2 sensor for 2002 f4i

I'm looking for a speedo healer that will fit an 02 f4i. cuz guessing my speed is starting to become a problem when I have cops out and about.
also does does anyone have a o2 sensor for a 2002 f4i that they are will to sell cheap. because OEM says they want 200 + bucks which is crap. or does anyone know how to build a resister that will fool my computer into thinking that there is a a o2 sensor?
thanks,

Don't have experience with both, but if you search the forum there is plenty of advice in here. Never came across a used speedo healer, but I guess you can try the usual ebay and www.speedohealer.com. As for the O2 sensor, I believe that this is what you are looking for: http://www.powercommander.com/powercommander_iii_usb/powercommander_all_downloads.aspx?mk=7&mdl=36&yr=2001#.

O2 sensor? California model I guess? my 2006 has one, but 2005 didn't unless cali. Look into the pcIII with the 02 eliminator also. There are alot of posts out there on this, try a search if you don't get a good answer.