I now want to start opening my bike up a bit!
Air Intake: 48 mm = 1-28/32" - hmmm what have you found that fits this? Or is it easier to adapt up to 2"? And what the heck do you clamp to - the flange on the carb is tiny?
Exhaust: I REALLY want a pipe like cruiser's for better low end grunt and top end flow, the chamber allows pulses to work for your engine.
How Two-Stroke Expansion Chambers Work, and Why You Should Care.
Dan's Motorcycle "Two Stroke Motorcycle Exhaust Pipes"
I was looking at the DAX $19.99 HiPo exhaust as well. I may drill/cut my current set-up, just for fun.
Noise: My exhaust is sorta noisy when standing by and revving it, but not really THAT loud when buzzing by. OTOH it isn't the silent beast either. A chamber pipe with an exhaust tip would be the best of both worlds, IMHO.
Noise II: I've got some sound deadening stuff for the clutch chamber and some silicone rubber tubing hunks to form fin sound deadener.