Racing Throttle Body Upgrade 32mm and 40mm for VESPA - ITALJET DRAGSTER - MALAGUTI - PIAGGIOMaicson Ecu Tuning LTD made it possible, a Throttle Body Upgrade for VESPA , ITALJET DRAGSTER E5 , MALAGUTI and PIAGGIO Engines. The THROTTLE BODY UPGRADE produce more Torque + HorsePower in Lower RPM and Higher RPM. The Throttle body Upgrade works on Stock engines, but makes his best Power on the Tuned Engines and boost the Engine to 35 45 HP or even more!!! Plug & Play Works with original Immo Key code Fits on Original Air Filter System Works also