I currently run a 1x11 with a 30t chain ring. I'm upgrading to a 32t chain ring and a new chain. The cassette will be the same. Would I be correct in assuming I need to be +2 links on my new chain?
No, you need +1 link on your new chain because the chain only contacts about half the chain ring so you go from 15 links around it to 16. You need to add links 2 at a time because you need one inner and one outer. You can either use the same length chain you have, which will bring the derailleur forward to give up 1 link or add 2 links and ask the derailleur to move aft to take up 1 link. It depends which end of the derailleur travel you are closer to the end of. If you care, the 2 links weigh about 4 grams. See this answer also.