Hey, I have a 2014 A6 5.0 with a paxton 2200 sc. My current setup is on 93oct. 8.5 lbs of boost, 16 degrees max timing, Lund tuned, JLT intake, Vortech BAP, DW 1000cc injectors, BBK long tubes, BBK high flow catted xpipe, pypes bomb catback. My question is what can i do to add a little more power while keeping the car safe and not forging the engine? I was curious about the gains from getting a lighter drive shaft as well.