TTI's to Doug's swap and headpipe fitment issues?

So I'm thinking about swapping my TTI's for Doug's while my motor is out. TTI's have been great but there is nobody around to recoat them for me and I want some nice new looking headers going back on my nice new engine. Wondering if I buy some Doug's if my exhaust will bolt back up easily? Anyone switched and had issues where the collectors end up and have problems fitting your pipes back up? I'm hoping its minimal and a little tweaking is all I will need. Thanks!