u/Automatic_Resort7347

Hello all - Looking to go Stage 2 on my 18' 540i within the next few weeks. Currently have a VRSF catless downpipe that I'm waiting to come in before the tune.

Before the tune, I plan on changing my spark plugs to NGK's, doing a fresh oil change, and a transmission flush (with new pan). Is there anything I'm overlooking or is there anything I should get done before throwing on a tune? For reference I'm going MHD ots and my G30 is around the 60k mile mark with oil changes every 5k.