Keeping your wiring safe is critical to ensure your engine and or electrical system continues to function as desired. When updating your ECU firmware, you MUST unplug the CAN Splitter from them main harness.
558-443 Can Cable CAN to USB Dongle For Holley EFI, Sniper EFI, Terminator X
Crankshaft Position (CKP) Sensor Adapter Harness - 24x to 58x LS for Holley EFI
Extension Harness for Holley EFI J1B P1B - Various Lengths
26 Pin J4 P4 4L60E/80E Transmission Extension Harness for use w/ Holley EFI
Wideband Oxygen Sensor (WBO2) Adapter Harness for Holley EFI
Holley EFI 558-443 CAN to USB Dongle - Communication Cable
