Designed for the 1996–2002 Mazda RX7 FD3S Series 7 and 8 models with manual transmissions, this Plug'n'Play kit combines the Haltech Elite 2500 ECU with an injection-molded adaptor harness for direct connection to the factory wiring. Engineered to simplify ECU upgrades while retaining critical OEM functions, this kit supports both single and twin turbo configurations, making it ideal for performance tuning and motorsport applications.

Note: E1000/1500 ECUs are compatible only with single turbo conversions. The Elite 2000/2500 supports factory twin turbo control.

Key Features

• Vehicle Compatibility:

  • Mazda RX7 FD3S Series 7 & 8 (1996–2002)

  • Suits 4-row factory ECU plug

  • Manual transmission only

• ECU Highlights:

  • Advanced engine management features with DBW, flex fuel, knock control, and full race tuning support

  • Environmentally sealed IP67-rated case

  • Paired with Haltech's powerful Nexus Software Programmer (NSP)

Included Components

• Haltech Elite 2500 ECU with Drive-by-Wire and Race Functions

• Plug 'n' Play Adaptor Harness (injection-molded plastic design)

• M14 x 1.5 Air Temperature Sensor with plug and pins

• Auxiliary I/O 16-Pin TYCO Plug and Pins

• USB Programming Cable

• Quick Start Guide

• Full ECU Software and Manual (CD/USB)

Supported ECU Functions

• Drive-by-Wire throttle control

• Programmable peak and hold injector current

• Flex fuel and closed-loop wideband O2 tuning

• Dual knock control, variable camshaft timing

• On-board data logging and full sensor protection strategies

• Dual CAN Bus connectivity for dashes and expansion

• Boost control, anti-lag, rolling launch, traction control

• Sequential turbo control and nitrous system integration

• Per-cylinder 3D tuning corrections

• Up to 45 I/O channels via CAN expansion

Vehicle Applications

• Mazda RX7 FD3S Series 7 & 8 (1996–2002)

• Manual transmission only

• 4-row ECU plug compatibility