Ignitions and Electrical Computers, Chips, Modules and Programmers

Hondata

S300 Plug-In Module

$595.00

SKU: HONDATA-S300-US

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In Stock
Ships by Aug 2
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INSTALL DIFFICULTY
DIY PRO SHOP

Easy — 1–2 hours

Description

The Hondata S300 (version 3) is a sophisticated plug-in module engineered to enhance the functionality of OBD1 factory Honda Engine Computers in manual transmission vehicles. It vastly expands the capabilities of the stock ECU, offering advanced features such as forced induction support, comprehensive datalogging, real-time programming, Bluetooth connectivity, and robust engine protection. Designed, manufactured, and assembled in the USA, the S300 V3 connects to your vehicle's ECU and utilizes the SManager software for all tuning and datalogging operations. This version introduces new features including support for ethanol content sensors, Bluetooth technology for programming and datalogging via laptop or mobile devices, and 2-4 times faster datalogging speeds. It also offers CAN output and serial output for integration with dashboards like the AiM MXL and Racepak IQ3. Key features include 8 analog and 1 digital input for datalogging, doubled datalogging memory capacity for up to 2 hours of recording, and non-battery memory backup for increased reliability. The S300 V3 provides on-board calibration storage and connects via USB or radio technology for speed and compatibility. The SManager software allows for parameter and table editing, calibration uploading, and real-time ECU parameter updates without interrupting engine operation. It supports various engine configurations, including adjustments for different injector sizes, configurable MAP sensors, and expanded fuel and ignition tables capable of handling boost pressures up to 60+ lbs and engine speeds exceeding 11,000 RPM. Further capabilities include three multi-purpose outputs for systems like nitrous control, wideband O2 sensor tracing, PWM output for boost control, and dual tables for multiple octane calibrations. It also features advanced tuning options such as launch control with anti-lag, full-throttle shifting, adjustable VTEC windows, and customizable rev limiters. The datalogging functionality extends to on-board flash memory for recording without a laptop, with multiple recordings totaling approximately 120 minutes. The S300 system is compatible with specific Honda ECUs, including P06, P28, P30, P72, P74, and P75 part numbers for models like the Civic (1992-2001), Integra (1992-2000), and Prelude (1992-2000).

MIA's Description

The Hondata S300 is a plug-in module designed for OBD1 factory Honda Engine Computers. It significantly expands the capabilities of the stock ECU, enabling features like forced induction, datalogging, real-time parameter updates, and engine protection. This module is compatible with specific US rectangular frame ECUs and requires the SManager software for tuning and datalogging.

Fitment

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Specifications

BrandHondata
Part NumberHONDATA-S300-US
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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