Spark plug gapping

[cyborg]

Hey, im looking to replace the spark plugs on my celica, im looking at Denso Iridium Plugs that are for my year of celica on the bay, would these be pre-gapped, or do i need to gap them myself still? I've never done it before, would it be a case of needle nose pliers, and how do you measure the gap?

 

[moss]

You use feeler gauages to measure the gap, although almost all plugged should be ready gapped now anyway.

 

[agw_01]

Iridium plugs don't need gapping

I've never gapped any plugs on my cars (don't even have a feeler gauge) and have had no problems.

 

[Virdi]

Nowadays plugs don't need to be gapped.

(Just make sure you don't drop 'em before you fit them)