The Haltech Elite 2500 DBW Ready Terminated Harness Kit is a high-performance engine management solution for GM GEN IV LSx engines such as LS2 and LS3. Engineered for manual transmission applications and drive-by-wire throttle setups, this kit combines the power of the Elite 2500 ECU with a terminated engine harness designed for fast, clean installations and full tuning control.

Whether you’re building a race car or a serious street machine, this package offers advanced features like flex fuel tuning, boost control, data logging, and full integration with the Haltech NSP software platform.

Note: For sanctioned competition/off-road use only (NOT CARB LEGAL). LS2 ignition coils and harnesses are not included.

Key Features

• Direct Fitment for GM GEN IV LSx (LS2/LS3):

  • Designed for DBW throttle configurations

  • Compatible with common Delco/Bosch GM alternators

  • Pre-wired for OEM 7-pin coil harness connectors

  • Manual transmission only

• Elite 2500 ECU Capabilities:

  • Flex fuel tuning, DBW throttle support

  • Dual knock sensor inputs and per-cylinder adjustments

  • Closed-loop O2 control and variable camshaft support

  • Launch control, traction control, anti-lag, flat shift

• Plug-and-Play Harness System:

  • Terminated engine harness with labeled connectors

  • Integrated fuse block and firewall grommet

  • Quick start guide included for streamlined setup

Included Components

• Haltech Elite 2500 ECU with DBW and race functions

• Terminated engine harness with fuse block and firewall grommet

• USB programming cable

Notes:

• Confirm alternator connector type and order adapter if required (HT-040090 or HT-040091)

• LS2 ignition coils and harnesses must be purchased separately

Advanced Features

• Tuning & Data Control:

  • 4D tuning tables, long-term learning, per-cylinder corrections

  • Onboard and laptop-based data logging

  • Dual CAN Bus for Haltech dashes and expansion

• Boost & Nitrous Control:

  • 4D closed-loop boost with learning and 14 correction maps

  • Up to 6-stage nitrous control with 3D fuel/ignition tuning

• Race-Grade Functions:

  • Rolling anti-lag, trans brake, flat shift, advanced torque management (optional)

  • CO2 boost, wastegate pressure and position control

  • Support for wideband O2, EGT, ride height, and more via CAN devices

Vehicle Applications

• GM GEN IV LSx Engines (e.g., LS2, LS3)

• Suited for DBW throttle configurations

• Manual transmission only