If it's not too personal of a question, I'm curious as to the rough estimate those have spent per their modifications to the X.

Curious to know as well - for those that offroad their trucks, if damages were sustained, aside from tires/hubs and rough estimates of getting those items repaired.

Any threats of non-warranted items do mod's?

Only mod put into my X was a new set of Dueler Revo's for $600; however, I'd like to a lot more.