Hey, I resently put a new 70cc kit in the my 50cc moped and there is no change and im wondering why. i have taken off the variator ring and thats about it derestricting wise . But after i put the new kit in there was no change but after some research i think it might be the exhaust but im not too sure on it ive looked into other exhausts but the ajs firefox one has this thing on far right side so i dont know if i can have a different exhaust and put a new one in. https://gyazo.com/c4edc7688f4f0ecfbb18dc78c87befaf Does this one go in? https://www.ebay.co.uk/itm/Yamaha-Aerox-R-50-Tecnigas-Next-R-Performance-Exhaust-/302896784945 But i was wondering how would i get a different exhaust for my moped so maybe it will be able to go faster. Cheers.