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The s300 version 3 is a plug in module to the OBD1 factory Honda Engine Computer (not included) for manual transmission vehicles which vastly expands the capabilities of the factory ECU. Forced induction, datalogging, real time programming, Bluetooth and engine protection are but a few of the comprehensive s300 features.
Designed, manufac
5.0
11 ratings
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Came highly recommend, so we gave them a shot. Customer service while there working on you ecu is next level. I definitely will continue to come back and recommend them to everyone I know.
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Beau · September 15, 2026
The overall experience was fantastic. Im very happy with my purchase.
