Ha hah. I enjoy questions like these, it's one of the reasons I keep opening the Stinger Forum every morning. These questions come along. But not often enough to satisfy me, still, beggars can't be choosers.
I, do, not, mod. Bone stock is the way to go. If I wanted a more powerful setup I'd by a more powerful bone stock setup. Pay to play.
Race cars are what you are aping with questions like these. Of course, any warranty is out the window as soon as you start down that rabbit hole. Pay to play.
I recall a S. Korean member some years back. Arguably, the Koreans modify more than any other place on earth. Judging by his standards, he was very heavily modified and kept adding stuff, just because, and because he raced his Stinger. Boom. And he's gone, no doubt off to modify some other brand of car.
To answer your question, along with
@Thomby, or rather to add another confirmation to what has been said, the only powertrain failures on modified Stingers I have read about were extreme
mods and racing their cars. Modified street machines don't blow up, unless you additionally do stupid things like abuse them through ignorance/neglect, or incompetently modify them, i.e., don't know what the heck you are doing.
Let us know how it goes, if you will.
