Ignition coil MSD or APR

I purchased the MSD coil upgrade kit, swapped out the coil pack, new spark plugs / wires, fresh oil / filter. Fired her up and she purred like a kitten.

You can also spring for the MSD coil, about twice as much but the boots are attached better I think, where the OEM part might have the boots rip off or the springs get caught up.

FWIW, I got an APR Stage 1+ tune on my '13 CC at about 30k miles. Blew one of the stock coils within a month. Replaced with red tops and new plugs and have been good since then (19k miles).

I replaced the coil with a MSD high performance which was actually cheaper than any other brand, and had significantly better boots on it to keep the water problem from happening again. Haven’t had an issue in 2 years.

I got MSD Street Fire coils to replace mine and its been 4 months so far and they're running strong.

I have used the blaster w a stock icm (the inductive version) and also with a 6al (cdi version). Both worked well over for 400whp with a stock dizzy.

I ran a Blaster 2 on my old car for a bit. Idle was a little smoother, but it was probably because the coil on it was crap. No real performance gains expected.

I tried running them with the stock plugs awhile back and ended up with random misfires. Pulled them off and put the stock coils back on…no more misfires.

Please get rid of those APR Ignition Coils and RS7 Spark Plugs. You are most likely encountering the misfiring from those alone.

I'd recommend getting rid of those APR coils before tuning, they cause so many headaches