Racepak The EFI Technology interface module is used to convert the data stream from the EFI Tech data stream in to a format compatible with the Racepak V-Net System. Data from the module is then available for use with the full range of Racepak V-Net devices including on board displays, real time telemetry, and data logging applications. Specifications: view and record up to 16 data channels, depending on ECU, without additional sensors / compatible with over 20 popular ECU systems / setup options include selection of scaling units, sample rates and sensor calibration.