ok i have a 07 r6 a midpipe gutted out headers, a fmf slip on, and power commander. the fmf is almost like the megafone slip on. so no baffle thing is crzy loud. i put the stock slip on back on and it quites things down alot. was wondering is putting the stock slip on going to make me lose some power.. cuz the map im running right now is perfect for my set up with the fmf.