Owner reviews for spark plug

I ended up leaving them as is and the car seems to be working fine.

Had to replace the plugs and ignition coils last summer and that fixed it.

I just changed the plugs in the wife’s e46 or should say that’s what was in the wife’s vehicle ngk whatever model they were.

Rockauto has the plugs(NGK 97181)

As long as the Bosch ones match the factory specs then I’m sure they are fine as many other parts and sensors on these cars are made by Bosch.

If you’re tuned on stock turbos, OEM or NGK 97968s.

Im tuned and on an E85 mix but using 1 step colder NGK's (#ILZKBR7B8DG) gapped to about 0.022...needed these before I even went MHD though. Once I did most of my maintenance, the car required this for proper spark. Night and day of a difference.

NGK and Bosch are the same ones as the Genuine BMW ones. The latter are just rebranded and marked up.

Don't use autolights. AC Delco for GMs & Motorcraft for Fords. Modern ignition systems are sensitive to plugs so I use whatever the OEM does (within reason)

Auto lights are trash, Bosch too. I can’t tell you how many times I get a misfire diag that the customer already put plugs in, only to find the garbage auto lights are the issue. A set of oem plugs always fixes it