I agree that there is a lot of TALK out there concerning Pipes. Number 1 issue with me is Build Quality. Materials, they should be light, but strong. Finish is next, I hate the AcKropovic Titanium canister. It's just wrapped around a form, then spot welded! Man, the entire seam is exposed, and knife edge sharp! It should be a fully welded seam. The Hindle is made the same way, only even Fewer spot welds. How cheap is that!
Take a close look at the Two Brothers Racing 4-2-1 C-5 Titanium canister, for the $ it's beautiful piece. You'll drop 19 lbs, and pick up around 14 HP's peak .
Tough decision for sure.