im taking this off my car (selling). the plan was to ship the mufflers in a seperate box.

i go to take off the passenger side muffler to seperate it from the y-pipe and the bolts are welded??? im like uh okay go to the otherside and its fine....regular bolts.

i talked to someone else and thiers was like this too. on the passenger muffler only.

any reason why it's like this? whats a good way to get the bolts off? they have like some weld on em.