Mil-Spec FuelTech FT550 ECU Extension Harness – 6” or 12” (Superseal 34 & 26 Male to Female)

Take your ECU wiring to the next level with this VTEC Innovations Mil-Spec FuelTech FT550 Extension Harness, engineered for high-performance builds and professional tuning environments. Designed for seamless plug-and-play compatibility, this harness extends your existing FT550 wiring using Superseal 34-pin and 26-pin connectors (male-to-female)—ideal for firewall passthroughs, bench testing, or ECU relocation. Product Features: • ✅ Available Lengths: Choose 6” or 12” • ✅ Connectors: Genuine Superseal 34-pin + 26-pin (Male-to-Female) • ✅ Wire: M22759/32 Tefzel military-spec wire, color-coded for clean routing • ✅ Build Quality: Professionally hand-built and continuity tested in-house • ✅ Sealing: Raychem heat shrink sealing at both ends for a finished, durable look • ✅ Use Case: Extend your FT550 harness for custom mounting, service access, or breakout box integration Whether you’re integrating a custom harness setup or simply need extra room in your install, this is the cleanest, most durable extension available. Built with the same materials trusted in motorsports and aerospace.