Injector Driver Module, w/ HarnessUSB Connection for 553-109 553-106OverviewHave you been searching for a reason to discard your old noisy mechanical speedometer cable? If so, the Holley GPS Module for our 7" Digital displays should be the next addition to your project vehicle. Featuring a simple plug and play installation, this GPS Module will allow you to display vehicle speed on your digital dash, without needing any external sensor information.Features: Engineered specifically to add a secondary set of high peak current injectors when utilizing a Holley EFI Dominator ECU Can be triggered by either negative or positive trigger to ease install in all EFI applications, be it a stock or aftermarket ECU Eight easily programmable channels for precise injector control Easy to wire Tyco Super Seal Connector Eight pre-programmed injector current curves Peak current settings from 4A to 10A Hold current settings from 1A to 2.5A Peak hold duration settings from .5 to 1.0ms Injector test fire program for quick troubleshooting while in the field 8 RGB LEDs indicate proper operation as well as log faults Two outputs (Ground and 0-5V) can be run to an ECU to datalog any injector faults Pre-Programmed in Position 7 for Billet Atomizer 325-800 or Precision 500 Lb/Hr Injectors LinksInstructions