Is the timing chain covered under the powertrain warranty?

I'm so scared to put a tune or anything else on this car because of the timing chain and transmission issues

 

all of them were under warranty and had to use the extended on my turbo exhaust manifold. until the 4th issue, i had to pay out of my pocket which set me back at 770 just for hub assembly. yea, it sux to have this issue. i dunno why cuz figured it would be reliable car in a way until maybe after 100k or so miles, issues would be popping up but it was actually reversed.

about the hub assembly, someone had to loosen the bolts which were hand loose. a week and half ago, i rotated them tires and double checked everything to be tightened at 85 ft/lb torque according to manufacture specs. then last Friday on way to my buddy's wake which happened. i am suspecting this was probably done on Thursday where i work. i told my boss about this and he says, take the receipt and make the mall pay for this. i am not fully set on this situation but i will talk into how to do this which would be nice.

finally got the paperwork done for the truck today and will pick it up tomorrow since i need to pick up the ra first which i am doing tomorrow morning.