I've switched from standard to the Bosch ones last summer and it significantly improved the acceleration on my 124 Abarth. Prior to the switch I'd see lots of misfires and "bumps" in the power delivery curve. The Bosch set was not a hard sale with being under 280€/260$ here in CZ. Highly recommended for anyone with power mods.
I’ve always had good luck with MSD coils. I’ve had them on MULTIPLE vehicles.
I replaced my coil around the same time, and no start failures for me either.
I gave the Jetta back to my son last week after replacing the coil. No issues yet - but mine was happening less frequently.
Been over a week with the new coil installed. No failures.
Yes, it's installed, and I have not had any failures since Monday. It was failing maybe every other day, maybe two times in a day.
So far, it's been four days without an engine start failure since replacing the ignition coil.
I assumed it was bad and while it was sad to get rid of the OE Bosch, Autozone had a C831 coil that I was able to pick up. I think the boot was slightly too small but I’m 90% sure it’s making contact but I am still not getting it to arc.
I believe Delphi is what people switched over to because the Bosch coils were failing.
But, its Bosch ignition coils had a defect and were being recalled.
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