Does anyone know what the upgrade path is for the cooper supercharger?
I presume that a supercharger upgrade would give the most power gain but has anyone got any experience tuning the Coop S? Which mods have you done and which do you think worked the best?
I presume that a supercharger upgrade would give the most power gain but has anyone got any experience tuning the Coop S? Which mods have you done and which do you think worked the best?