Warranty is dependant on where/how it tears (wear and tear vs. defect)
Very true, but if a dealer tries to say a CV boot failed after "normal wear and tear" at 6000 miles, they would likely get laughed out of court. OP has a 2014 so I doubt he has many miles on it either. Their only defense and out is "abuse" and they have to prove it. As with all mods, they can't just void the warranty, they have to PROVE the mod caused the damage. Haven't had a CV boot torn since so clearly not related to the springs.
I'm still new to this warranty thing, if I take it in and they deem it don't be converted under warranty am I going to have to pay then a fee just to tell me that?
That is correct, it's a risk you may have to fight, ect. Just to cover all bases have you talked to the shop that did the install about it? Maybe they did something and didn't realize it caused damage.
Just ask the mechanic, phrase it like "I just found my CV boot torn after the install, you guys didn't notice any grease or tears starting did you?" Better than flat out accusing them off the bat.
Any ideas if your dealership is mod friendly?