The Fabricator’s Choice for Custom Harnesses
The Elite 2500 ECU + Plug and Pin Set is designed for the professional harness builder who constructs looms from scratch using mil-spec materials. This kit provides the industry-leading Elite 2500 ECU alongside the essential AMP Superseal connectors and terminal pins required to mate with it. This option is ideal for motorsport applications where concentrically twisted, Raychem-sheathed harnesses are being fabricated to specific chassis dimensions.
Unrivaled ECU Capabilities
The Elite 2500 is Haltech’s premier ECU, offering sophisticated control strategies for drag racing, circuit, and time attack vehicles. It features 8 fuel and 8 ignition drivers, allowing for sequential control of V8s or staged injection on 4-cylinder engines. The unit’s advanced torque management, launch control, and traction control systems provide the competitive edge needed on the track.
Connector Precision
The included Plug and Pin kit features high-quality AMP connectors with keying that matches the Elite 2500’s headers. The terminals are designed for robust crimping, ensuring reliable electrical contact even under high vibration. This “ECU + Plugs” configuration gives the builder complete freedom to choose their wire gauge, type, and routing path.
Operational Benefits
- Maximum Customization: Build a harness to your exact specifications without modifying a pre-made loom.
- Weight Savings: Create a lightweight, minimalist harness for racing applications.
- High-End Features: Access to 4D tuning tables, closed-loop boost control, and flex-fuel integration.
Fitment Guide
Engine Compatibility: Universal (1-12 Cylinder, 2-4 Rotor)
Installation Type: Custom Wire-in (Requires Crimping/Termination Tools)
Technical Specifications
| ECU Model | Haltech Elite 2500 |
| Connector System | AMP Superseal 1.0 (34-Pin & 26-Pin) |
Summary & What’s Included
The core components for a custom mil-spec ECU installation.
Includes:
- Elite 2500 ECU
- AMP Plug and Pin Set (26 & 34 Pin Connectors)
- USB Programming Cable

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Elite 750 + Nissan Patrol Y60 (TB42) Plug 'n' Play Adaptor Harness Kit
Elite 750 + Nissan Patrol Y60 & Y61 (TB45) Plug 'n' Play Adaptor Harness Kit
Elite 750 + Toyota LandCruiser 80 Series Plug'n'Play Adaptor Harness Kit
Elite 750 Mazda Miata (MX-5) NA Plug'n'Play Adaptor Harness
Elite 750 Mazda Miata (MX-5) NB Plug'n'Play Adaptor Harness
Elite 2000/2500 Ignition Harness For Ford Barra 4.0 BA/BF
Elite 2500 + Terminated Harness Kit For Ford Falcon BA/BF Barra 4.0L I6 Injector Connector: Factory Bosch EV1
Elite 2500 + Terminated Harness Kit For Ford Falcon FG Barra 4.0L I6 Injector Connector: Factory Bosch EV1
Elite 2500 + GM GEN III LS1 & LS6 (DBW Retrofit Ready) Terminated Harness Kit Injector Connector: Bosch EV1 (as per factory)
Elite 2500 + GM GEN III LS1 & LS6 non DBW Terminated Harness Kit Injector Connector: Bosch EV1 (as per factory)
Nexus R5 + LSx Non DBW Terminated Harness
Nexus R5 LSx DBW Terminated Harness - DBW ready Injector Connector: EV6
Nexus R5 LSx Non DBW Terminated Harness Injector Connector: EV1
Nexus R5 VCU + LSx DBW Terminated Harness Injector Connector: EV6
Elite 2500 + GM GEN IV LSx (LS2/LS3 etc) DBW Ready Terminated Harness Kit Injector Connector: Bosch EV1
Elite 2500 + GM GEN IV LSx (LS2/LS3 etc) DBW Ready Terminated Harness Kit Injector Connector: Bosch EV6 (as per factory)
Elite 2500 + GM GEN IV LSx (LS2/LS3 etc) non DBW Terminated Harness Kit Injector Connector: Bosch EV1
Elite 1500 + Mazda 13B S4/5 CAS with IGN-1A Ignition Terminated Harness Kit Injector Connector: Bosch EV1
Elite 1500 + Mazda 13B S6-8 CAS with IGN-1A Ignition Terminated Harness Kit Injector Connector: Bosch EV1
Elite 2000/2500 Terminated Engine Harness for Nissan RB Twin Cam with CAS harness and Series 1 (early) ignition type sub harness
Elite 2000/2500 Terminated Harness for Nissan RB Twin Cam With CAS Harness
Elite 2000/2500 Terminated Harness for Nissan RB Twin Cam With CAS Harness and Series 2 (late) ignition type sub harness
Elite 2500 + Terminated Engine Harness for Nissan RB Twin Cam With Series 1 (early) ignition type sub harness
Elite 2500 + Terminated Harness Kit for Nissan RB Engines (no ignition sub-harness, no CAS sub-harness)
Elite 2500 + Terminated Harness Kit for Nissan RB Twin Cam With Series 2 (late) ignition type sub harness
Elite 2500 + Terminated Harness Kit for Nissan RB30 Single Cam with LS1 Coil & CAS sub-harness
Elite 2500 + Toyota 2JZ HPI6 Terminated Harness Kit Injector Connector: Bosch EV1
Elite 2500 + Toyota 2JZ IGN-1A Terminated Harness Kit Injector Connector: Bosch EV1
Elite 2500 + Toyota 2JZ No Ignition Harness Terminated Harness Kit Injector Connector: Bosch EV1
Elite i6 R35 COP Ignition Harness
Elite 2500 + V8 Small/Big Block GM, Ford & Chrysler Terminated Harness Kit Injector Connector: Bosch EV1
Nexus LS 2 Pin Bosch Alternator Harness Length: 200mm
Nexus LS 2 Pin Yazaki Alternator Harness Length: 200mm
Nexus LS 4 Pin Delco Alternator Harness Size: 200
Nexus Universal V8 - GT150 (USCAR) Injector Primary Breakout
Nexus Universal V8 - GT150 (USCAR) Injector Secondary Breakout
Nexus Universal V8 - IGN-1A Ford Harness
Nexus Universal V8 - IGN-1A GM/Chrysler Harness
Nexus Universal V8 - Junior Timer (EV1) Injector Primary Breakout
Nexus Universal V8 - Junior Timer (EV1) Injector Secondary Breakout
Universal V8 Terminated Engine Harness for Nexus R5 VCU
Nexus S3 ECU Only
NTK Wideband Hardware Pack
Wi-Fi Antenna Glass Mount 2.4Ghz Thread: RP-SMA
Wideband Adaptor Harness - 400mm Length: 400mm
Elite 1500 + Basic Universal Wire-in Harness Kit Length: 2.5m (8')
Elite 1500 + Premium Universal Wire-in Harness Kit Length: 2.5m (8')
Elite 1500 + Premium Universal Wire-in Harness Kit Length: 5.0m (16')
Elite 1500 ECU
Elite 1500 ECU + Plug and Pin Set
Elite 2500 + Basic Universal Wire-in Harness Kit Length: 2.5m (8')
Elite 2500 + Premium Universal Wire-in Harness Kit Length: 2.5m (8')
Elite 2500 + Premium Universal Wire-in Harness Kit Length: 5.0m (16') 









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