I don't think durability with the B&B's should be much of a problem. I just had the 1 3/4" set installed and will find out. They are made of stainless steel, so it will be a very long time before they rust, if ever. I like the idea of the JetHot just to keep the under hood temps down and JetHot claims there is some HP increase. I just didn't want to go too the extra time, expense, and hassle. Maybe the wrong decision, but the one I made.
Just a note of caution, when you put them on and fire it up for the first time, don't be surprised to hear a bit of exhaust leak at the collectors. They are a slip fit, meaning that they come with 5 individual tubes for each side that you bolt on one at a time then slip the collector on the end of all 5. I was concerned at first and the installer (Finish Line Dodge) called B&B and they told them that I had to drive it for a while to heat cycle them and it would seal up. I was skeptical, but now that I have about 350 miles on them, it seems to be true. I still have some leakage, but it seems to be going away rather than getting worse.
I am not sure how JetHot would affect this. The additional coating thickness may be enough to tighten up the connection. On the other hand, the coating my insulate the pipes enough that they don't expand to seal. I would give B&B a call and ask before I sent them out or get info from someone on the board that has tried it.