I was just wondering yesterday if how your work on your pipes was going, ThrottleJock.
It looks real nice. How's it seem to be running? Is that can custom as well?
I actually haven't been up to his shop to see, hear, and dyno the bike, I've been tied up with work (baaah) and an SR500 project that's going off the deep end in a good way. That is a custom can, all hand built. We tried a few designs early on but settled on a pretty standard but LARGE perforated stainless core with "permanent" stainless steel packing and welded end, same as you'd see on a Staintune or similar but larger in diameter. He's experimenting with stepping up the headers to meet the baffle like you'd see on one of the systems he builds for race cars. Looks like he's stepping up in size a couple times here, with largest diameter through the core of the baffle.
The design I think I'm going to eventually go with will appear similar to what you see here with the headpipes to the point that they join, but I want them to Y out again and terminate in dual stacked baffles, sort of like what you'd see on an MV Agusta Brutale. The crossover section would be where it is now, tucked up under the lower right side of the swingarm instead of in the stock "bus-stop" location behind the center rear of the case.
He's designing it to tuck up as tight as possible under the bike; pegs will be the first thing to drag and the headers and can(s) should never hit ground (unless you're crashing).
I can't wait to hear it run. I'll have to work on the jetting a bit I'm sure, this is a much less restrictive setup than the Staintunes that came off of it... but it'll be a fun process to see, hear, and feel the results.
Once the final versions are made we'll be measuring them up and storing the design in CAD in case there's any interest in a "production" version of the header setup or full system. I'll keep you posted!