Proma GP with separate aluminium muffler

• Finally back again: Proma GP!
• PSR edition, with separate aluminium muffler
• Fast exhaust, for 50cc and 70cc cilinders
• When running in idle this exhaust produces 80Db, so its quiet, nice dark sound. See clip. (Depending on the cylinder you have)

Measurements exhaust (picture 8)

• A: 1000mm length
• B: 290mm length 
• C: 710mm length 
• D: 25mm outer diameter
• E: 22mm inner diameter

Will work together with pedals, see picture 7.
With Airsal OM and NM cylinder the flange need to be grinded back a little