From HKS wire harness
*** 2 x brown wires and 1 x red wire harness connects to the front leading coil.
*** 2 x orange wires and 1 x red wire harness connects to the front trailing coil.
*** 2 x white wires and 1 x red wire harness connects to the rear leading.
*** 2 x yellow wires and 1 x red wire harenss connects to the rear trailing coil.
