Elite 2500 + Terminated Engine Harness for Nissan RB Twin Cam With Series 1 (early) ignition type sub harness

Complete Electrical Restoration for Series 1 RB Engines

For the owners of early-model Nissan Skylines and RB-swapped vehicles, the electrical system is often the weakest link. The Elite 2500 + Terminated Engine Harness for the Nissan RB Twin Cam with Series 1 (early) ignition is engineered to eradicate this weakness entirely. This kit combines the powerful Haltech Elite 2500 ECU with a bespoke wiring system designed to provide absolute electrical integrity. Precision-terminated with OE-grade connectors, it delivers flawless communication between your engine management system and every critical sensor and actuator, specifically catering to the external igniter module architecture of the early RB engines.

Engineering Philosophy: From Weak Link to Foundation

The design ethos behind the Elite 2500+ harness is rooted in motorsport reliability. Standard factory harnesses use thin-gauge wiring with PVC insulation that degrades under hood temperatures. This harness utilizes a cross-linked polyethylene (XLPE) insulated wire throughout. XLPE offers superior thermal stability, maintaining flexibility and dielectric strength in continuous ambient temperatures exceeding 125°C. Each circuit is meticulously routed with calculated wire lengths to eliminate excess slack, while strategic bundling prevents cross-talk that can corrupt data to the ECU.

The Termination Process: Authenticity Meets Precision

“Terminated” signifies that every connector is pre-installed with the correct OEM-spec terminals. This kit includes the specific sub-harness required for the Series 1 Ignition System, which utilizes an external ignition amplifier (igniter chip). The connectors for this module, as well as the coil packs, are genuine OEM-spec, ensuring a perfect, waterproof seal.

Vehicle Fitment & Application Specifics

Primary Vehicle Applications Include:

• Nissan Skyline R32 GT-R (BNR32) & GTS-t (HR32)
• Nissan Skyline R33 GT-R (BNR33) – Early Models
• Nissan Cefiro A31 (RB20DET)
• Nissan Laurel C33 (RB20DET)

Critical Note: This harness is for Series 1 Ignition (External Igniter). If your coils have built-in igniters (Series 2), this is not the correct kit.

Technical Specifications