they seem to think they are.
here's part of their description on their website , pay attention to the bold words..
unless of course you're saying that those particular wires on that car are not from zzp... i was just speculating they were since the car had a bunch of other zzp crap on it.At ZZPerformance we always strive to have the absolute best products combined with the lowest prices to give you a great experience. Despite our best efforts, sometimes we fall short of the quality you've come to expect from ZZP. Looking at customer feedback, we learned that our ZZP gen 2 brand plug wires were one of these times.
anyhow on zzp's website they had a write up called "mods not worth doing" ...which included coil packs and those $100 plug wires...but yet they sell them and give a sales pitch about how great they are and the gains you'll get...lol
http://www.zzperformance.com/blog/mods-you-dont-need/
Aftermarket coil packs
The stock ignition on a Grand Prix is very good. It is so good that we run stock coil packs on all of our cars at ZZP. Failure rate of stock coil packs is low and the spark output is extremely high. We have A/B dyno tested aftermarket coil packs and seen no difference in HP. We have seen many aftermarket units fail and when customers have a problem it’s very hard to diagnose with extra unneeded mods on the car.
The ignition control module sits under the coil packs. It sends a limited current to the coils for a predetermined pulse (dwell). You cannot change the wires or the coils to get ‘more spark’ because the ignition control module will not send more power to the coils. You would have to change the ignition control module for a significant increase. The MSD coils and/or the MSD wires are a downgrade in your ignition system in regards to the 3800. The best you can do is run a wire with slightly less resistance or more insulation. These are very small improvements but the only meaningful ones.
Aftermarket Plug wires
Unless you have a problem with your stock wires, you don’t need to buy aftermarket ones. In our experience of working on GPs the failure rate of most aftermarket wires is 10 times that of stock wires. GM puts everything they have into making cars get the best mileage they can with the least amount of problems. A poor ignition system would increase emissions, which GM couldn’t afford. This means plug wires from the factory are designed for high spark, low radio noise and excellent performance. If you’re set on upgrading them forget about MSD and Jacobs.
The regulator controls the power of the factory ignition module in the 3800. The MSD wires have almost no resistance which puts a large demand on the coils to produce a lot of current (Ohm’s Law). Since the ignition control module limits the current to the coils, you end up with a poorly performing system. This is probably why we gained a consistant 4 HP going from MSD to our new ZZP wires and why MSDs have performed poorly in our high HP builds.