Justin, NGK is good for the Mitsubishi engine (and lots of other cars). Leave the 2.6 alone. You hate it, I get that, but other people have it, possibly like it, and need it to stay running. Bosch is junk. Their oxygen sensors are junk, their plugs are junk, their ABS system is junk.
OP, did you ever get the bad plug out of your car and get it running again?