My dealer offered me a G-Power supercharger for the X5. They said if I install it through them, they will offer full warranty on the part used as if it was part of the car. According to them it will have a 0-60 just under 5.0 and will be packing almost 500hp. Only problem is the tag, which is $20k. I was going to get it when I took delivery of the X, but now am considering waiting for the M. I will definitely get the M X5, but will keep this as well in the family.

Is it worth spending 20k or should I wait (and suffer)?

__________________
2011 ///X5 M (On Order)

2009 X5 4.8 M Sport Space Gray/Black Fully Loaded

2007 GMC Yukon XL Denali Loaded and Customised