Exhaust for a 1973 Duster 340 (Pics Included)

They're great mufflers and sound amazing. But there's nothing wrong with the muffler shop stock $20 turbos either. They certainly won't last as long as a good stainless muffler. Just to get you going.
Thank you so much! I do have it in my budget to get a nice set of mufflers :) However, I'm sorry but I'm still a little confused. I take it to the shop with just the mufflers and just have them add the pipe? Will it be just straight pipe or an x pipe or an H pipe? I'm the epidomy of a noob here lol I really appreciate all this help