Ignition coil Bosch or APR

I ran Apr coils for a little while. Was instantly more stable after I was running rough. I think it’s worth it even without a tune, and it’s more headroom to keep a tune stable as well. I didn’t notice power gains only that the rpm needle was sharper at being steady.

As per ignition coils, the only ones you should buy for N43/53 engines are Bosch. All the others (Delphi, Febi, HP etc.) are the same Chinese coil sold under different names, same issues as the counterfeit parts.

I'm running Bosch and have been for 45k miles with no issues, even tuned running extra boost which demands more of the ignition coils.

I have Bosch in my 2015 currently with no issues for 30k miles so far

I'm running APR coils with ZFR5E-11 plugs. There was a noticeable smoothness when I fired it up after install.

I’ve ran Bosche in all my M3’s with great success.

I bought a new Bosch coil from TT because the original in my '88 Scirocco 16V didn't have the exact readings the Bentley said it should have. The new coil didn't have the correct readings either according to the Bentley and it didn't make my Scirocco run better.

Went back to old Bosch coil (which was not bad before) and no change.

Those coil packs are junk.

I had these APR blue coils on for about 35-40k miles and they ran okayish. At idle my car ran a little rough and have tried different plugs with no change, then one day cylinder 2 started slowly losing power on the highway then just completely fell off the face of the earth when i pulled off. Let car take a break and went back to normal then exact same happened again. Speculated it was coils so swapped to oem and car has been running great 10k miles later. Overall like i said do not recommend whatever pixie dust is in these oem packs is just too good