The mufflers were welded up from 56mm tube, I got the exhaust shop to cone two pieces of 45mm pipe out to 56mm and two from 42mm pipe and welded them either end of the 56mm pipe. The baffles are made from 38mm pipe, with lots of holes drilled through and one end stoppered.
Aluminium clamps were made up to clamp around the 56mm pipe, these bolt to the pillion passenger mounting points. The holes for the pillion pegs are 12mm, so I spun up a couple of brass bushes to bush the holes down to 10mm.
Once finished I painted the pipes and mufflers in heatnproof black paint, the aluminium mounts and clamps were polished.
I was expecting these to be on the loud side, but surprise, surprise, the baffles keep the noise down to a legal level.
Aluminium clamps were made up to clamp around the 56mm pipe, these bolt to the pillion passenger mounting points. The holes for the pillion pegs are 12mm, so I spun up a couple of brass bushes to bush the holes down to 10mm.
Once finished I painted the pipes and mufflers in heatnproof black paint, the aluminium mounts and clamps were polished.
I was expecting these to be on the loud side, but surprise, surprise, the baffles keep the noise down to a legal level.