I'm sure if theywere looking to be ******, they could give some grief about it, but they'd have to prove that the pulley created the failure.
Only my timing controller could be directly "probable" they'd really give a red mark on, but that's a simple plug N play that can come off 1.2.3. bam and DONE.
Each of the mods I've done can come off pretty quick and be put back to stock if I wanted to swap anything out before taking in for warranty work should the motor fail.
But these mods are made to enhance what it's capable of. Honestly, if I were thinking of the outlander for LONG term keeping/driving, I'd have no problem installing RRM's turbo kit for the 2.4. In fact, the wifes 14 model will probably get my timing controller and strut bar when I trade it, and get an aggressive off road look with some slightly larger all terrain tires and maybe a budget boost lift of 1" or so.