bolts for exhaust

[yashin]

hey, just wanted to see if anybody knows the size of bolt that you need for bolting the exhaust to the cat, as well as for the cat to the exhaust manifold

i'm changing my exhaust and would rather not put rusted to hell bolts on

thanks

[180fan]

When I took off my exhaust, the nuts coming from the studs on the cat were 14mm. The bolts through the hangers were weird though, since they were 13mm.