I looked at possibly making some baffles for the big radius I've got
"just incase of inspection"
honestly not worth taking a chance in stuffing the motor
playing with back pressure is not a joke

the baffles inside the SE slip ons arent that easy to take out
cheap solution is if u can get them out wrap with some Fibreglass cloth (around $10 from MCA found in the dirt bike section)
that will muffle a little- otherwise probably best to stick the stockies back on
best of luck
FT