I'm running APR coils with ZFR5E-11 plugs. There was a noticeable smoothness when I fired it up after install.
I've had APR coils for over 50k now. No issues at all. Done 3 track days on the coils, and 2 on both the coils and plugs. Been stage 2 for over 30k now.
A blue Beru is what I have been using for a decade.
Installed APR coils with NGK lasers in January. No issues here since.
Did mine recently, with new APR coils and more performance oriented NGK plugs.
I had my old OE coilpack off, replaced with the new BERU unit. I had everything put back together, started her up, and she was running okay, but still far from perfect.
I have the APR coil packs installed currently (about 5k mikes on them so far) and I gotta say... Just stick with OEM. There is no benefit...
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
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