8 channel Hi Output Ignition Coil & Harness Kit GM/Chrysler

Overview

Transform your V8 build with eight individual high-output IGN-1A inductive coils delivering superior combustion control and massive spark energy. This complete plug-and-play kit eliminates the compromise of shared coil packs, giving each cylinder dedicated ignition power for cleaner combustion, improved throttle response, and the ability to run aggressive timing maps on high-boost or high-compression builds.

Technical Specifications

• Part Number: HT-130312
• Coil Type: Individual high-output IGN-1A inductive coils
• Channel Count: 8 channels
• Firing Order: GM/Chrysler Hemi Small/Big Block configuration
• Power Relay: 75A TE high-current relay included
• Harness Construction: Terminated Tefzel Milspec wiring

Why You Need This

Individual coil-per-cylinder setups are essential for serious V8 builds where shared coil packs become the limiting factor. Standard distributorless ignition systems often struggle with high RPM, boost, or aggressive timing — you'll see misfires, inconsistent combustion, and power losses exactly when you need reliability most. This kit solves that with dedicated IGN-1A coils that deliver consistent, powerful spark to each cylinder independently.

We see this upgrade on everything from LS swap projects pushing serious boost to Hemi builds running E85 and aggressive timing maps. The individual coil design eliminates cross-talk between cylinders and provides the spark energy needed for complete fuel combustion in modified engines. Whether you're building a 600hp street car or a 1000hp drag setup, unreliable ignition will kill your power gains and potentially damage your engine — this kit ensures your ignition system never becomes the weak link.

ECU & System Compatibility

Designed as a direct plug-and-play solution for Haltech Elite 2000/2500 V8 terminated harnesses, Elite + REM 16 injector terminated harnesses, and Elite + REM fully integrated flying lead harnesses. The GM/Chrysler firing order configuration makes this ideal for LS engines, Hemi builds, and other domestic V8 platforms. Compatible with the full Haltech Elite and Nexus range — contact our team to confirm fitment for your specific ECU and harness combination.

What's in the Box

• 8x High Output IGN-1A Inductive Coils (HT-020114)
• Complete terminated Tefzel Milspec coil harness
• 75A TE high-current power relay
• Installation documentation

Complete Your Build

Most customers completing a high-performance V8 ignition upgrade also add our premium spark plug leads and NGK Racing plugs to maximise the system's potential. For forced induction builds, consider our knock detection modules and wideband oxygen sensor kits to fully exploit the improved ignition timing control this setup provides. All components are held in UK stock for fast despatch, and our technical team can advise on the complete ignition package for your specific build requirements.