Kösz. Akkor mérek..én most hallok erről először ,)
Találtam ilyen társalgást a témáról:
It should be noted that all the NGK plugs that end in -xx, like BKR6E-11 are pre-gapped from the factory and also require no gapping. The 11 means 1.1mm, or .044"
OK, so the NGK plugs are supposed to be gapped at the factory (maybe Japanese 1.1mm is different that our 1.1mm :p ). Yes, it is always wise to check plug gap, regardless of whether they come pre-gapped or not. It's not hard and it takes all of 10 seconds for each plug.