Bought a 2001 4.4 X5 Loaded Any Advice on Bolt Ons???
Looking for More HP !!! Help !! Started with a K&N --
Thanx!!! FJB20

Hey, I would suggest DINAN. I work for a DINAN dealer so I know the products. I recently installed a HiFlow T body, air box and mufflers on a 4.6is. Good difference and great sound from the mufflers. You would need programming if you do the airbox and t body though. The mufflers don't require programming.

Bought a 2001 4.4 X5 Loaded Any Advice on Bolt Ons???
Looking for More HP !!! Help !! Started with a K&N --
Thanx!!! FJB20
this is for bmw tech i have a 02 x5 3.0 i want more hourse power but my car is a lease what do u recommend let me know thanks

REMUS has some X5 modifications. Their exhaust is widely known and i believe they have different stages of modifications. They supercharge i believe, and recently they do 4.6is mods. For more information go to http://bimmer.roadfly.org/bmw/forums/e53/ and ask around.

shameless plug (http://boykinracing.us/index4.htm) :sunglasse

have you tried looking at performance speclists like HARTGE, HAMMAN, AC-SCHNiTZER ,RMS and maybe autowerke ,Racing Dynamics, MK Motorsport , RMS and of course DINAN.