I wouldnt reccommend a stock clutch if your using a supercharger. Your just asking to burn it up real quik, and it will not beable to handle the amounts of power you throw at it. Look at spec stage 2 or 3 or centerforce dual friction.
You already have flowmasters with o/r h pipe. How much louder do you want it ? By the way magnaflow or borla will make it sound quite. Unless you get stinger or magnapacks. Want loud run no mufflers.