MOST coil packs for coil on plug systems are universal... you can use them on N/A or boosted setups..... its just like older cars with one ignition coil.... ecept no distributor and there are 8 coils....
i guess in lammens terms they would be similar to fuel injectors as far as the way they all have the same connector and can be switched with any other injector on that vehicle...IF you wanted to look at it that way.....lol
i have the msd coil packs,with the granatelli connectors,and brisk plugs.dynoed but the weather took care of any gains that day.will do again when it gets cooler in phoenix.i can feel the difference since putting them on.