Bolt in exhaust kit for Doug's Headers?

I used the Summit racing 2.5” header back kit on my Duster with Doug’s headers. I swapped out the mufflers but I didn’t have any issues with the kit, the tail pipes were a little long but that was easy to fix and once that was done the tail pipes were fine. I swapped out a couple of the included hangers for better ones, but the pipes themselves were good.