This expansion harness plugs into the ECU's expansion port, through the firewall, and to the engine. It is completely independent of the engine harness itself so it works with stock Ford harnesses, or our PiMPx/PiMPxs harnesses. It allows you to ditch the TFI module, stock ignition system/coil, etc. and convert to a modern coil per cylinder/coil near plug/coil on plug ignition system. It's designed to connect directly to our CAS conversion kit or you can ditch the distributor entirely and run a crank trigger and cam sensor of your choosing. The harness connects directly to the stock GM coil harness (the harness that connects 4 LS truck coils to a single connector) or you can choose the IGN-1A coil harness that connects directly to the IGN-1A and includes all of the power and grounds required to run them.

Features:
--Fully assembled kit is the connector with 32 wires crimped and installed in the connector, terminated connectors, relays, and wiring loom. 
--All wires have their function printed on the wire, and are color coded for ease of use. 
--Also contains all of the wires in the standard expansion pigtail that aren't part of the coil/ignition conversion. All of those "extra" wires are rolled up and kept inside the firewall for a clean install. Then you can pull whichever additional features you want to use through the firewall. Complete list of functions is provided in the PiMPxs Startup Guide Table 2. 
--Works with stock Ford engine harness or our PiMPx/PiMPxs engine harnesses. 
--9ft Total Length. 

Includes:
--Coil Near Plug Expansion Harness
--LS Coil Sub-Harness (Connects to GM LS Coil Harness) or IGN-1A Coil Harness (Connects Direct to Coils). 

Requires Either:
--LS Truck Coils with GM Coil Harness (connects four coils to a single connector that plugs into expansion sub-harness) 
or 
--IGN-1A Coils 
--Plug Wires
--Coil Brackets/Mounts

Instructions & Documentation:
--Harness User Manual: CLICK HERE 
--CAS User Manual: CLICK HERE

Not for original PiMP