Elite 2500 + Terminated Harness Kit for Nissan RB Twin Cam With Series 2 (late) ignition type sub harness

Complete Electrical Upgrade for Series 2 RB Engines

In the realm of high-performance Nissan RB engine builds, the integrity of the electrical system is non-negotiable. The Elite 2500 + Terminated Harness Kit for the Nissan RB Twin Cam with Series 2 (late) ignition is engineered to replace the OEM unit with a solution that provides uncompromising reliability, precision signal integrity, and simplified installation. Designed for engines utilizing the late-model optical CAS and the internal igniter coil system (often referred to as Series 2), this harness eliminates the common failure points of aged factory wiring, ensuring your high-output RB20, RB25, or RB26 delivers consistent, powerful ignition under all conditions.

Engineering for Uncompromised Signal Integrity

The primary function of any ignition harness is to transmit low-voltage trigger signals and high-voltage switched power with absolute fidelity. The factory RB Series 2 sub-harness often suffers from brittle insulation and corroded terminals. The Elite 2500 kit is constructed from premium materials specifically chosen to combat these issues. The core utilizes high-strand-count, fine-copper wiring with high-temperature insulation. This combination offers superior flexibility for routing in tight engine bays and minimal voltage drop over its length. Each wire is precisely cut to length, eliminating excess that can lead to electromagnetic interference (EMI).

Direct Benefits of the Elite 2500 Harness System

• Plug-and-Play Simplicity: Comes with the correct Series 2 ignition sub-harness that plugs directly into the factory coils (which have built-in igniters).
• Optimized Signal Fidelity: Shielded CAS wiring protects critical timing signals from engine bay noise.
• Robust Power Delivery: Heavy-gauge power feeds ensure coils and injectors receive full battery voltage.
• Integrated Protection: Includes a fuse block to protect the ECU and engine components from electrical faults.

Precise Vehicle Fitment and Application

Primary Applications Include:

• Nissan Skyline R33 GTS25t (RB25DET Series 2)
• Nissan Skyline R34 GT-T (RB25DET NEO)
• Nissan Skyline R34 GT-R (RB26DETT)
• Late model R32/R33 GT-R (verify coil type)

Critical Note: This harness is for Series 2 Ignition systems where the igniter is built into the coil pack. It is NOT compatible with Series 1 engines that use an external ignition module.

Technical Specifications