Take your LS swap or custom build to the next level with the 20-inch LS Coil Extension Harness Set , designed for remote-mounted ignition coils . This harness allows you to relocate coils off the valve covers for a cleaner engine bay, improved heat management, and professional-looking LS swap setups . Built with OEM-style connectors and durable 18 AWG TXL automotive-grade wire , this harness ensures consistent spark performance and long-term reliability in even the most demanding builds.
Whether you're building a street car, race car, or show-quality LS swap , this harness set delivers flexibility, professional-grade quality, and a clean, organized engine bay.
20" Harness Length - Provides plenty of reach for remote coil installations and custom LS setups.
Compatible Coils: Fits D510C, D581, D514A, and D585 ignition coils.
Not Compatible with D580 Ignition Coils - Ensures proper coil selection for reliable performance.
Not Intended for Factory Valve Cover-Mounted Coils - Designed specifically for remote mount applications.
OEM-Style Connectors - Secure, factory-quality connections for hassle-free installation and reliable performance.
18 AWG TXL Wire - Heat-, oil-, and abrasion-resistant for durability under the hood.
Proudly Made in the U.S.A. - Built with premium materials and craftsmanship for lasting performance.
Clean, Professional Engine Bay: Relocate coils off valve covers for a sleek, organized appearance.
Reliable Ignition Performance: Maintains consistent spark for all high-performance LS engines.
Custom Build Ready: Perfect for LS swaps, remote coil setups, racing, or show-quality builds.
Engine Compatibility: LS engines with remote-mounted ignition coils
Use Cases: LS swaps, custom builds, racing, engine bay cleanup
Coil Compatibility: D510C, D581, D514A, D585 (Not compatible with D580)