The Haltech Elite 2500 ECU paired with a Plug 'n' Play Adaptor Harness Kit provides a powerful, seamless engine management upgrade for the Mazda RX7 FD3S Series 6 (1992–1995, 2-row ECU plug, manual transmission only). Built for high-performance and motorsport applications, this system delivers advanced control, race-ready features, and exceptional tuning flexibility with minimal wiring effort.

Important Emissions Notice:
This product is intended for sanctioned off-road or competition use only and is not legal for public road use unless a regulatory exemption applies.

Key Features:

• Direct Plug 'n' Play ECU solution for Mazda RX7 FD3S S6 (1992–1995, 2-row ECU plug)

• Manual transmission only

• Elite 2500 ECU with:

  • Drive-by-Wire throttle control

  • Dual knock control with engine position synchronization

  • Variable camshaft control (up to 4 cams)

  • Closed loop O2, idle, and boost control

  • Flex fuel tuning via direct ethanol content input

  • Launch control, anti-lag, rolling start boost hold

  • Up to 4D tuning with long-term learning

  • CAN Bus integration for Haltech dashes and supported OEM CAN/OBDII systems

  • USB communication with NSP Calibration Software

ECU Technical Specs:

• 8 x Fuel Injection Outputs

• 8 x Ignition Outputs

• 12 x Digital Outputs

• 10 x Analog Voltage Inputs

• 4 x Synchronized Pulsed Inputs

• 4 x Dedicated Inputs (Knock, Ignition Switch, Onboard MAP Sensor)

• 2 x Engine Position Inputs

• Waterproof IP67-rated enclosure

Includes:

• Haltech Elite 2500 ECU with DBW and Race Functions

• Injection-molded Plug 'n' Play adaptor harness

• M14 x 1.5 air temp sensor with matching plug and pins

• 16-pin TYCO auxiliary I/O plug and pins

• USB programming cable

Vehicle Fitment:

• Mazda RX7 FD3S Series 6 (1992–1995)

• 2-row ECU plug

• Manual transmission only

Brand: Haltech
SKU: HT-151328