I have a 2005 people 50 2t and I'll have to look to see if I have that dingleberry exhaust thing. One question. If you derestrict a stock muffler, by either cutting the restrictive cone off the flang or/and drilling out the restriction washer inside the flange, do you have to worry about rejetting??
So far I believe the clutch/variator and the cdi have been derestricted when I bought it second or third hand, I can easily get up to around 45mph.