Ignitions and Electrical Computers, Chips, Modules and Programmers

Hondata

S300 V3 Plug-in Module

$974.00

SKU: HONDATAS300V3

In Stock
In Stock
Ships by Aug 2
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30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Easy — 1–2 hours

Description

The Hondata S300 Version 3 is a sophisticated engine control module upgrade that seamlessly integrates with OBD1 Honda Engine Computers. This system significantly enhances ECU capabilities, offering advanced tuning parameters and expanded tables for both rpm and load, supporting up to 60 lbs of boost and 11,000 rpm. New features in the V3 include integrated Bluetooth for wireless datalogging and programming from a laptop or mobile device, support for ethanol content sensors, and CAN support. It also provides serial output for compatible dashboards like AiM MXL and Racepak IQ3. The module itself fits inside the ECU, is made in the USA, and utilizes a high-speed USB connection for efficient programming and datalogging. It includes built-in calibrations for common engine combinations, real-time ECU updating, and on-board datalogging memory. Installation requires modification to the ECU; it must be socketed, and the case will need a slot cut for the USB connector. The S300 V3 is designed to fit in a full-frame ECU case (US and most markets) and will not fit in a JDM square case ECU, which requires the Hondata S300J. Professional installation is strongly recommended due to the complexity and risk of damaging the ECU.

MIA's Description

The Hondata S300 Version 3 is a plug-in module designed for OBD1 Honda Engine Computers. It vastly expands the capabilities of the factory ECU. This system offers advanced features for tuning and performance.

Fitment

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Specifications

BrandHondata
Part NumberHONDATAS300V3
CategoryIgnitions and Electrical

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Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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