I don't have anything over a g62....figured that two of the cans might be big enough...and I'm sure that I can TIG weld them together side by side..
I measured a BCM off of my RCS 180 and one can is a little smaller in volume than theirs...

Thanks anyway, I'm just poking around...
I usually have to run the stock (steel) mufflers that come with the engines because of the 95bd required at our field...