I ran a JB4 during most of my X1 factory warranty and just removed it before dealer visits. Was never a problem - got a fair amount of work done too (new hpfp, timing chain tensioner, injector seals).
You're likely just a JB4 and a few gallons of e85 away from having TWO 10 second daily drivers. That would have to make yours the fastest garage for quite a radius! I've had my eye on gently used and CPO X3Ms for a bit now, and am saving my pennies and might bite if and when the right spec and deal comes along. Perhaps come the end of the year.
Well, I suppose what is the e90 N55 and X1 forums' loss is the S58 and X3M forums' gain. Your contributions here have been have been invaluable. Rock on!
