High-quality Link ECU wiring harnesses for plug-and-play installation. Ideal for custom modifications and reliable ECU connections. Link ECU XS Extension Cable (XSL) XS Extension Cable for Plug-In ECU High-quality Link ECU wiring harnesses for plug-and-play installation. Ideal for custom modifications and reliable ECU connections. XS Loom - Additional Inputs/Outputs for PlugIn ECUs Do you want to add additional inputs or outputs to your Link PlugIn ECU? Use the XS Loom . The Link XS Loom connects to the expansion connector of all Link G4, G4+, and G4X PlugIn ECUs. The number of additional inputs and outputs available through the XS Loom depends on the specific PlugIn ECU model. Details can be found in the technical specifications of the respective ECU. Typical applications (among others): Boost control knob or switch Wideband lambda/AFR sensor Oil pressure sensor Fuel pressure sensor Intake air temperature sensor (IAT) Map switch (switching between different tuning maps via switch) Specifications: Length: 2.5m Cable gauge: 20AWG