DIY Engine Harness Systems
Pre-engineered sensor pigtails, labeled circuits and subassemblies that let you build a clean engine harness around your ECU instead of starting from scratch.
Made to OrderAutomotive Wiring • Performance Electrical • Custom Builds
Built Different.
EdgTech Performance delivers professional-grade wiring and electrical solutions for builders who are done settling for cheap, one-size-fits-all parts. From DIY engine-harness subassemblies and waterproof relay kits to full custom performance wiring, every job is engineered for reliability, serviceability, and clean installation.
What EdgTech is building
- DIY engine-harness pigtail and subassembly systems
- Waterproof Bosch-style relay harnesses
- Fuel pump and electric fan control kits
- GM, Hemi, Ford, LS/LT, Duramax and performance applications
- Custom race, restomod and specialty electrical systems
- Professional documentation, labeling, pinouts and circuit data
Product Lines
Made for builders who want to do it right.
Made-to-order products can be configured around your vehicle, ECU, sensors, routing, wire lengths and intended load.
Dual Fan Relay Harnesses
Heavy-duty electric fan control built with properly sized wire, sealed components, professional terminations and serviceable construction.
Waterproof ComponentsFuel Pump Relay Kits
High-current fuel pump relay systems designed for performance EFI, carbureted conversions and custom builds.
Performance ReadySensor Pigtails
Application-specific connector leads with correct terminals, seals, wire type, labeling and optional extended lengths for custom routing.
GM • Ford • Hemi • MoreBulkhead & Race Harnesses
Custom bulkhead, data acquisition, CAN, sensor and race wiring with detailed circuit identification and professional documentation.
Custom EngineeredCustom Electrical Packages
One-off wiring for restomods, swaps, race cars, hot rods, specialty vehicles and projects where off-the-shelf harnesses do not fit the job.
Quote RequiredWhy EdgTech
Engineered like an OEM harness. Built for real-world performance.
The goal is simple: give serious builders a better option than bargain wiring kits and questionable terminals. EdgTech focuses on correct circuit design, proper wire sizing, quality connectors, clean service loops, protection, labeling and documentation.
✓ Professional materials
✓ Correct wire sizing
✓ Sealed connectors
✓ Circuit labeling
✓ Pinout documentation
✓ Made-to-order options
Custom Services
EdgTech also handles performance electrical engineering, complete vehicle rewiring, engine-swap wiring, race/data harnesses, custom relay and power-distribution systems, and specialty project work.
High-end work only. The focus is on custom performance and specialty builds rather than general OEM repair.
About EdgTech
Built from real harness manufacturing experience.
EdgTech Performance was created around hands-on experience designing, building, troubleshooting and improving complex electrical assemblies. That experience is being applied to the automotive DIY and performance market with one standard: build products people can trust.
Request a Quote
Tell EdgTech what you are building.
Include the vehicle, engine, ECU, product or harness type, major electrical loads, sensors, and anything unusual about the project.
This starter form opens your email app. It can later be connected to a real form service, CRM, or online store.