Owner reviews for ignition coil

When I replaced my coils this spring I didn't cheap out: went with Denso since that was OEM. When it comes to electrical components, I try to be as close to OEM as I can.

I was told once by a distributor of many brands including Motorcraft that Bosch made the Triton coils. Our group sold thousands of them, with very little trouble.

Denso. Reputable company, good parts, I’ve seen them used with good results.

DENSO is an OEM supplier and are pretty good IIRC.

Get the Delphi coils, no need to buy genuine BMW.

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.

But once you get the R8 coils they lasted for a very long time.

I have changed the ignition coils, spark plugs, MAP sensor, fuel filter, and ran fuel cleaner in the tank twice. The only time it seemed better was for a couple of months after I changed ignition coils (Bosch).

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

They’re made by Delphi but they are different internally than the Delphi gn10571 or whatever they are, in the aftermarket. I had misfire issues and strange electrical feedback with Delphi aftermarket.