Its comfortable enough. 6'1 300#.. might switch to a set of Biltwell Zeds, not sure yet. As for a dyno run... it is going to cost $500.00 - $600.00 to get her run and mapped out on the dyno. Guy says 500 minimum with stock ECU. I simply don't have it right now after spending $2200 on a sick dog at the vet and my own medical crap. It looks like I probably won't be riding her before I can get a dyno run because I can't get a decent tune at all. I don't anticipate being able to afford that until close to next winter. She'll remain shut up in the garage until then, and I'll wish I could be riding. Sorry I can't get a dyno sheet to share.
As to the folks saying they need reinforcing - I have had other bikes with pipes much the same with THOUSANDS of miles without cracking or breaking - why should these be any different? They don't weigh much at all, and I highly doubt they are going to break off at the head or break the studs.
They DO have backpressure. I have them baffled with a set of BCT style baffles. They add backpressure, and make the sound a lot deeper in person than it is in the video. Also, it is correct - these pipes weren't made to be "best performance" but they will certainly not rob the bike of much as they are not really open drag pipes.
Third - as to the heat. They REALLY don't get that hot, especially now they're wrapped. However, I think I soak some of the heat up w/ my cowboy boots .. never really noticed it the few times I took her out for a test ride.