Hondata S300 V3

The s300 version 3 is a plug in module to the OBD1 factory Honda Engine Computer (not included) which vastly expands the capabilities of the factory ECU. Forced induction, data logging, real time programming, Bluetooth and engine protection are but a few of the comprehensive s300 features. Designed, manufactured and assembled in the USA. There are rectangular frame ECU (US) and square frame ECU (Japan) versions of the s300. The S300 uses SManager software for tuning and data logging. Installation will require you to ship us your ecu - return shipping included ​WarningWithin the USA this product is legal only for racing vehicles which may never be used upon a public highway.Please Do Not forget to select which ECU you have before placing the order. All orders will default to USDM if not selected otherwise.