I will definitely keep putting these plugs in my car every time. I'm pushing 25 psi and with NO misfires. If you want to maintain consistency in all your WOT keep buying these. Gap accordingly and done.

Used it on a 2013 328i xdrive. No problems, engine sounded like it ran smoother after replacing old ones at 80k miles.

my 328 f30 had some idle issues it would just vibrate every once in a while so i did new spark plug and this deff took the issue away

Same as Oem fit with no problem, but you will need get special socket to remove them. Wish I would know that before. Have to borrow friends car to go to the BMW dealership for the spark plugs socket.

Bought these for my F30 N55 Bootmod3 stage 1 because BM3 recommended buying these colder plugs. Works well enough.

Fast shipping, spark plugs are gapped at .020 and provide great power for my 335i

after i received this i proceeded with the install shortly after I snapped my oil sparkplug in the motor i used an extractor to get it out, if our sparkplug is tight spray pb blaster to save u the headache overall they worked well with my f30 install was easy 7/10

Fixed the slight stumble on cold start

Are these 1 step colder or 2 step colder on N55 engine - 2011 535 xdrive

A lot of conflict going on with the N55 spark plugs, I went with this spark plugs on N55. Gapped at 0.022, still got some misfires paired with BOSCH coil packs, but will try with Eldor coils.