ok got my stadium pro and i broke it in and was not impressed w the speed provided out of the box it comes w a 26 motor for which is ok power forit so i used a 17 tooth clutch bell to speed it up and it worked great compared to the stock setup w the 14 tooth in it , my question is , is there a 2 speed for this i can install or any other hop ups to make it even faster w the stock engine ??