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Number One: They don't work. Bought a set, and the car immediately began misfiring under boost. Talked with MSD, and they told me that these coils were not designed to work in a pressurized engine ??? They said that the same wire that supplies power to the coils also supplies power to the injectors, and under WOT situations, there isn't enough amperage to do both jobs. They suggested that I rewire the coils directly to the battery. I said that there is nothing advertised other than plug and play, and that a rewire was out of the question. The C6 is too finicky when it comes to all the electronic engine controls and I wasn't going to jepordize the performance just to install some "purdy coils". Number two: The stock coil coils work just fine. Number three I'd love to sell my MSD coil packs. Used for 5 minutes. Still in original box. Cheap !!
You guys who like MSD coils are buying them because they look good.Got a complete set on E-bay for $23.95 free shipping and they work fine. 50,000 mile guarantee.Stop wasting your money plus who sees them when you put the covers back on.
Last edited by vette20045; Jun 2, 2016 at 08:15 PM.
Reason: left word out
You guys who like MSD coils are buying them because they look good.Got a complete set on E-bay for $23.95 free shipping and they work fine. 50,000 mile guarantee.Stop wasting your money plus who sees them when you put the covers back on.