[Dimitris200]

I recently fitted new sparkplugs Beru with 4 spikes...
the fact is that the covers dont close entirely but the car seems to run absolutely fine(i could say even better than before with the champion ones)
Anyway, do you think its a problem?

 

[Stu]

Not an issue, but the ones with 4 "spikes" are proven to reduce the flame, not increase it.

This actually means worse performance, but a longer life.