Performance Distributors GM LS/VORTEC SOS Coils - Manual (Page 6)

We didn’t even need to unstrap the car from the dyno
because the install was so simple and quick.
The first step of the installation is to disconnect the
negative battery cable. Starting on the driver’s side of the
car, we removed the coil packs of all the odd-numbered
cylinders, then shifted to the passenger side to remove the
even-numbered coil packs, even though the install can be
started from either side – we just wanted to be organized.
Removing the coil packs is quite simple; all you need to do
is disconnect the main power supply connector from the
top of the coil, remove the spark plug wire from the
bottom of the coil, and unbolt the coil from the bracket on
the valve cover. Once all of the coil packs were off, we
carefully removed the spark plug wires from the spark
plugs, making sure we didn’t mix up the order of the wires
(joking!).