NGK. Coils aren’t something worth saving a couple bucks over picking a worse part
Ngk has been much better in my experience
I've had success with NGK coils via Rock Auto on multiple vehicles.
Used the mitsubishi one’s in my 2006 9-3 - no issues in over 7 years of use. Used these NGK in my 2011 9-5 (they were $2 more per coil but had a 3 year warranty) Different engine with OEM being Denso but the NGK have worked fine over the past year.
I recently replaced using NGK. Solved my random miss holding at 5k. I'm pleased with them. Not lacking anything. It added some pep to my step, for sure.
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.
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.
Never had good runs with ngk
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