Does anyone in X3 land know of an aftermarket turbo- or supercharger kit for teh X3?

I have an '04 3.0 6-spd X3 that we bought in VA. Last summer, we moved to Santa Fe, NM, where driving is still fun (e.g. Fairfax Co, inside the Beltway, with 1.1 MM people, vs the state of NM with 2MM in the whole state -) except for one thing - the altitude 'discount' on horsepower. You lose ~3% for every 1000', so at 7000', I figure I'm down about 45 hp. I put on a Dinan CAI, Stage II software, & cat-back exhaust, which crisps things up a bit (13 hp, 17 ft/lbs before 'discount'), but the only way to properly compensate for the altitude is via forced induction.

I've driven an '07 with 265 hp, which is a nice improvement, and it's unclear when/whether the twin-turbo gas or diesel will become available in the X3 (besides, this one's paid for!)

Any help would be appreciated.

Cheers, M2