After doing 7 pipe swaps on dyno day one and 8 changes on dyno day two, the attention to detail on the Hall pipe was second to none. The exhaust flange is well thought out. No need for an exhaust gasket, the flange has it built in. The one pipe mount works.
Owner of the 6 month old V2 already had to patch the lower mount, he's a welder so he did a clean job. Plating was flaking off. The V1 silencer rivets were sloppy.

Before anyone gets butt hurt, these were things I seen doing the swaps. I took lots of pics and video.