I have a 2014 impala looking to see if anyone knows about any engine mods you can do for 3.6 v6 without messing up factory warranty

Welcome to the forums Scott!
Many do not look at the introduction section, so for better exposure & responses, I would recommend that you ask this question in the Performance/Tuner Section.
Performance, Brainstorming & Tuning - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat

Welcome to the forum, thanks a lot for joining! As far as I know, adding performance mods usually void the warranty. Still, if you want to add some really badly, I would recommend you to go with a new cold air intake. It should be fine.