Ignition coil DELPHI or HUCO

I replaced the spark plugs over the weekend, and I’m doing the ignition coils tomorrow replacing them with brand new Delphi’s.

I changed my ignition coils to delphi aftermarket ones and the idle is nice and smooth now. But the old ones had like 200k km on them.

That's the Delphi coil. It's the updated part from the original all black Bosch. It's the only one I put in my customer's cars.

Delphi is considered the go-to for N52 coils.

My delphi has been running good for about 20k miles with ngk wires and plugs.

i have huco coils on b207r, almost 4 years, they work fine

Replaced with Delphi coils and it hardly bucks, still does but not as bad as oem once in a blue moon for a half a sec.

I don’t like the Delphi ones cause they come apart, if you do spark plugs again say 20k miles passes you could deal with the silicone tube on the end getting stuck down when pulling them, then you gotta be careful and get the spring and that out without the spring flying off somewhere.

The auto shop found out what the problem was as they had replaced two of the ignition coils with OEM and two from a company that produced the ignition coils for Mazda. The two from the company (Delphi) went bad. I have to use only parts from Mazda.

I tested the coil and found it to be faulty (that's what I get for buying a cheap one). The first time I tested it, it seemed to be fine but that was on the truck. This time I took it off to make sure I got a good connection and sure enough it fell out of range on both of those tests....