I sent out a box today. I have a stock style exhaust in storage I'll dig up and I can't find my good top end but I will figure out where it went.
I've never cut up any of the leo Vince stock style pipe but I think the big "pro" on those is that they aren't totally clogged up with carbon. We've had a handful come in on Spx and one moby. I couldn't tell a difference but they were used and possibly also clogged up. I did find a full chrome one on a parts bike while digging around which is neat.