My 2016 3.7 I did nothing. My 19 GT I redid a lot of the suspension with steeda. I won't touch the motor till the warranty is up.2, 3, 4, and 11, just couldn't decide which one to check.
However, wheels, tires, Rock Blockers, floor mats, removing the engine cover, jacking rails,.............are things I want to do. Do they count?