man, that is a lot of questions, ill try to get them all.it is finished. no baffles .thread,
http://motorbicycling.com/f13/40mph-...led-11141.html this bike is the testbed. i never rode it with the stock pipe. no dyno yet. 40mph, 24.5" tire, 8000 rpms, dual carbs, 36t sprocket. blueprints are 20 bucks. the curves are pieces of a u-bend, they do nothing to hinder or improve performance. it was built for this exact motor, 20 bucks for those dimensions as well. no.
coming soon
the bike
the pipe
