• Boost Your Engine's Potential: Control up to 8 injectors staged sequentially for improved performance. • Convenient Connectivity: Direct connection for in - built gear controller and additional inputs/outputs. • Durable and Reliable: Heat, moisture, and oil - resistant insulation with labeled connectors. The FuelTech Universal 4 cylinder B FT550 expansion harness is the perfect addition to the Universal 4 cylinder A harness. It comes with a relay having a built - in fuse for powering the extra 4 high - impedance injectors. Ideal for 4 - cylinder applications with sequential injection using FT550 and to be used along with FT450/550 4 CYLINDER UNIVERSAL A HARNESS.

This FuelTech FT550 4 Cylinder Universal B Expansion Harness is great for those who want to upgrade their engine control system. It's perfect for car enthusiasts and mechanics working on 4 - cylinder engines. Use it when you need to control more injectors and have better connectivity for your gear controller. It's designed to work with the FT450/550 4 Cylinder Universal A Harness and can handle up to 8 injectors staged sequentially.