Hi i have a Speedfight 2 2002 AC and i have recently ordered a Yasuni R 70cc sports exhaust, it was a tose up between that and the Stage6 pro exhaust but in the end i went with the Yasuni R good decision? and i was wondering what size jet i would need for this exhaust ( everything else is standard on the ped and has been derestricted) I want a jet that will give the exhaust a lot of power/ top end and doesnt drink shit loads of petrol. My mate has the same exhaust and no word of a lie it goes 72MPH his is LC tho same ped But he doesnt no his jet size, Thanks