is replacing resanator section easy, meaning do i hav to get the new one weilded in or do i just undo a couple of bolts like my muffler section. just asking cause i want to add a after market one and they ar sayin its a direct bolt-on, but its just just that coupler that conserns me. or does someone make a clamp that bolts up rather then weilding?

thanxs for the help tom