agility 125 exhaust

[bthmtech]

has anyone found a good performance exhaust for an agility 125, my  locale shop will gut my stock pipe ,but it looks nasty when its done ,i do not want to do that, present mods include DR PULLY  variator and ruima clutch and malossi belt and mrp stealth clutch bell,any help would be greatly appreceated  thanks bthmtech

[bthmtech]

also i have heard conflicting results from cc upgrades ,what are the pro and cons about those,and how big can you go without milling the case,i have the ability to do the case milling but if it is not worth it i do not want to do it thanks again bthmtech