The new one has a "custom" PLP engine management system. Whatever they were using before (emanage?) wasn't going to allow them to get the CARB cert...AltezzaBob said:Does anyone know why PLP jumped the price for the Powerdyne supercharger? Is there like new parts in it or for the better parts included that make up for the 500 diff? i know the 4K one was a pre-release.