MSD 82878 Ignition Coils Pro Power Series, Red, 8-Pack

The MSD 82878 Multiple Spark Coil, (Set of 8) has had mixed reviews from customers. Some have found that the coils do not provide any noticeable improvement in performance. One user mentioned that they installed the coils on their 2004 6.0L GMC gas engine and did not see any increase in mileage. They also experienced a random multiple misfire code that may or may not be related to the coils. Another user had a 2006 Hummer H2 with a 6.0 engine code U and was unsure if these coils would work. In terms of fitment, there have been customers who have successfully used these coils on different vehicles such as an LS4 5.3L in an 2006 Grand Prix GXP and an LS2 Corvette. The reviews are generally negative, with customers reporting issues such as coils failing, creating a crank no start condition, and poor overall performance. One user mentioned that they had to replace the coils after only a few years and found it not worth the money spent or the hassle of going to the dealer. Another user stated that three out of the eight coils they purchased had already failed and opted to switch to AC Delco coils on the recommendation of their Corvette club. Overall, the reception of the MSD 82878 Multiple Spark Coil, (Set of 8) is mixed, with several customers experiencing problems and finding them not worth the money spent.