A couple items....My Milwaukee cordless impact has 1100 foot pounds of torque, it was not budging.
1) I have nothing either. I was talking about trying to get that bolt out. ie loosen1) What the heck on an MDX needs over half a ton of torque to tighten adequately? I'm coming up with nuthin'...
2) Most impacts have a MUCH bigger "off torque" than "on torque". For example, my "wired" impact has 1,100 foot pounds of torque removing a fastener, but "only" 300 foot pounds installing one. That's fine, because accidentally applying 1,100 foot pounds of torque to almost any bolt is going to have "bad consequences".
3) Unless Milwaukee has a secret line of products, they don't have anything remotely close to that range of torque in a cordless impact (at least not that I've seen). The max is about 2.000 INCH/pounds (or 167 foot/pounds, and those are pretty pricey).