Hey guys so I changed out my exhaust on my wide glide my question is I tightened the bolts down to tight but didnt crank on them dont want to brake then as u u all know why . Can some one tell me if I should crank them down or leave them snug? Thanks

 

The flange nuts on the heads?

They don't need to be very tight. I don't have my FSM handy but I think they're only like 10 foot pounds. To avoid loosening, use a second jam nut or "Stover" locking nuts.

 

Here is the procedure, starting with the front:
install lower nut finger tight
install upper nut to 9-18 in/lbs.
tighten lower to 60-80 in/lbs.
tighten upper to 60-80
repeat with the rear nuts
NOTE: these are inch pounds, not foot pounds
If you are referring to the flange nuts, be sure to check them after a couple of heat cycles to see they haven't loosened up.