[BimmerHausPerformance]

Originally Posted by musclesmarinara75

Brow.. and BlkMax... I currently have step colder plugs, If I go with the B5b coils, should I use the same colder plugs?.. or go with what was stock?

The whole point of the coils is to increase the spark "power" to be able to continue to run the colder plugs AND increase the gap.

I was told for n55 one step colder plugs you should gap:

PR Coils
.025

b58 Coils
.028

[ultraboosted]

Originally Posted by BimmerHausPerformance

The whole point of the coils is to increase the spark "power" to be able to continue to run the colder plugs AND increase the gap.

I was told for n55 one step colder plugs you should gap:

PR Coils
.025

b58 Coils
.028

I know this is an old post, but this right here finally got my car running how she should have been. I was gapping at .022 for the one step colder on B58 coils. Needless to say, stumbled across this post and replaced my spark plugs with new, correctly gapped plugs and W O W. Thank you for that BimmerHausPerformance