Hondata S300 V3 / S300J V3 – OBD1 Honda/Acura ECU Tuning Module

Hondata S300 Version 3 programmable ECU module for compatible OBD1 Honda and Acura ECUs. Choose either the US rectangular-body S300 or the Japanese-market square-body S300J. This is the module/installation kit only; ECU is not included.

ECU Type: US rectangular-body S300 (SKU S300-US) or JDM square-body S300J (SKU S300-JDM). Both are $595.00.

US rectangular ECU: Supported P05, P06, PR4, P28, P30, P61, P72 and P75 families, depending on application and required ECU modifications. JDM square ECU: Select manual-transmission Japanese-market OBD1 ECU families, such as JDM P08 or P30. These hardware modules are not interchangeable. Verify exact ECU case shape, transmission type, socketing and wiring requirements before ordering.

Features include SManager tuning, USB and Bluetooth connectivity, datalogging, boost/fuel/ignition calibration, ethanol-content sensor input, and engine protections. Installation requires opening and socketing/modifying a compatible ECU by a qualified installer.

Emissions/road use: Sold for competition vehicles only; not CARB street legal and not for use on public roads. Choose the correct ECU Type: US rectangular or JDM square.