Im pulling my motor this week to change my wastegate spring,downpipes removeing evop system and a list of upgrades.What are the top 5 or more things i should do while the motor and trans is out as far as seals sensers ext? Also my car has 34000 miles tc and trans feel good but with the upgrades i will be doing i will be looking at around 650 hp easy.I think i sould do some thing with the tc.Can i use the c6 tc?Does anyone have some input? I also have mtm tcu.