http://www.xoutpost.com/bmw-sav-foru...rake-pads.html
This link will answer all your questions on pads. The4.6 and the 4.8is share the same caliper and pads. Make sure you buy what your SAV needs not what the loacl NAPA dealer is selling. I believe that Raybestos makes those pads if they are selling the good ones. Take at look at the link and look on Rockauto.com for the additional options.
This link talks about rotors also which you will need when replcaing pads if you want to have a safe and secure stopping power.
Oh, Cool Carbon does NOT make pads for our X5 models only the slower ones......

They have them for the rear only, but to make your vehicle solid you need the same brand front and rear.
Good luck
__________________

2005 X5 4.8IS
The
Blue ones are always FASTER....
Current Garage:
2005 X5 4.8is
2002 M5 TiSilver
2003 525iT
1998 528i
Former Garage Stable Highlights
2004 325XiT Sport
1973 De Tomaso Pantera, L Model
1970 Dodge Challenger T/A 4 sp Alpine White
1970 Dodge Challenger T/A 4 sp GoManGo Green
1971 Dart Sport, “Dart Light” package
1969 Road Runner 383
1968 Ply Barracuda 340S FB Sea-foam Green