hi, im new. wanna know what happen to my wise. I've Kill the Cat, change center box to bullet( suggest by kedai exzos at Sg. Buloh). My problem is, FC become crazy like hell. Before RM50 for 350 to 400km. Now RM50 only 250KM. Pening kepala la. Feel like wanna change back to stock. Please all sifus, any suggtion.:confused_smile: