I decided to go with an NGK/DELPHI unit, although I didn't need it; I just wanted to perform preventive maintenance. New IRIDIUM spark plugs too and its running great! I agree with BigLee: don't risk it with MSD; their reviews have been very scary!
Most of MSD's failure issues seemed to be with their add-on CD multi-spark ignition boxes for distributor systems several years back. The 6-series boxes in particular were failure prone. So much so that many hotrodders were keeping the stock ign. module and other components mounted and wired for quick switchover back to stock if or when the MSD died.
I dont know if these issues carry over to their other ign. products, such as their "upgrade" inductive coil line.
So maybe these coils will hold up over time.
We'll just have to wait and see...
It's hard to determine the quality of such a product by looking at its external appearance.
It could be the nicest looking coil pack you've ever seen, and you still end up with a failure Just a few months later.