Upgrade your engine management setup with the Link ECU B Loom Medium, designed specifically for Link G4, G4+, and G4X ECUs. This 2.5-meter loom is ideal for custom wiring projects, providing a reliable connection with color-coded wires that match the official manual for easy installation. Whether you’re tuning a Subaru WRX STI or another performance build, this loom ensures clean, professional wiring integration.

Featuring shielded dual-core wires for knock signal accuracy, the loom connects via a Link ‘B’ ECU connector on one end and unterminated wires on the other, allowing flexible customization. It suits a range of Link ECUs including the G4X Storm, Fury, Xtreme, and G4+ Thunder models, with some requiring additional Loom A or connector kits for full compatibility.

Perfect for Subaru enthusiasts and tuners who demand quality and precision, the Link ECU B Loom Medium supports complex wiring needs with confidence. Shop now at Subimods to enhance your engine management wiring with trusted parts designed for performance.