IO 12 Expander Box B - CAN Based 12 Channel - BOX Only

The Haltech IO 12 Expander Box B provides twelve additional CAN-based input/output channels, expanding your existing Haltech ECU's functionality without requiring individual wire runs. This CAN-based architecture simplifies wiring harness complexity while delivering reliable communication between your ECU and additional sensors, switches, or outputs. Ideal for complex engine builds requiring extra channels for boost control, nitrous management, data logging inputs, or auxiliary outputs. This listing includes the box unit only, with harnesses available separately to suit your specific installation requirements.