Product details
Jessie's Performance LS Custom Ignition Coils Harness
Take your LS engine build to the next level with Jessie's LS Custom Ignition Coils Harness, engineered for reliability, performance, and a clean professional installation. Designed to provide secure, consistent connections between your ignition coils and engine management system, this custom-built harness delivers dependable spark delivery for street, performance, and racing applications.
Each harness is proudly built by RTP and made in the USA, using genuine MIL-SPEC aerospace-grade materials, including M22579-spec wire and DR-25 heat-shrink loom for exceptional durability and protection. We also use genuine OEM-quality connectors and terminals, ensuring precise fitment, secure electrical connections, and long-term reliability. These are the same materials and components trusted in demanding automotive, motorsports, and aerospace environments.
To accommodate a wide variety of engine combinations and custom installations, our harnesses are available in multiple lengths and can be tailored to your specific application for the cleanest possible routing and professional appearance.
Whether you're completing an LS swap, upgrading your ignition system, or finishing a high-end custom build, Jessie's LS Custom Ignition Coils Harness provides a wiring solution that looks as good as it performs.
Features
15” length connector to connector (additional lengths available)
Built by RTP and proudly Made in the USA
Constructed with genuine M22579 MIL-SPEC aerospace wire
Protected with DR-25 heat-shrink loom for superior heat, abrasion, and chemical resistance
Built using genuine connectors and terminals for maximum reliability and proper fitment
Available in multiple lengths to suit your build requirements
Compatible with LS-series ignition coil setups
High-temperature, motorsports-grade construction
Clean, professional engine bay appearance
Designed to withstand extreme heat, vibration, moisture, and harsh operating conditions
Ideal for LS swaps, race cars, street performance builds, and restorations
Hand-built with meticulous attention to detail and quality
Why Choose Jessie's LS Custom Harnesses?
Unlike generic aftermarket harnesses, our ignition coil harnesses are built using the same proven materials trusted throughout the aerospace and professional motorsports industries. The combination of M22579 wire, DR-25 loom, and genuine connectors and terminals delivers exceptional reliability, durability, and performance under the most demanding conditions.
Every harness is handcrafted by RTP in the USA and built to the standards serious enthusiasts, racers, and professional builders expect. Available in multiple lengths, each harness is designed to provide a clean installation, dependable performance, and long-term durability.
For a custom application not listed, please contact us directly.
Made in USA
