Post by
9240sx »
https://forums.nicoclub.com/9240sx-u11838.html
Sat Nov 18, 2006 12:39 pm
The NKG plugs you guys are taking about are pre gapped..Just look in the part# The 11 at the end of the part# means its pre gapped to .042-.044..The right spark plug gap for a sr20det is .036 which is a 9 in a NGK spark plug part #..So if your running *****-11's Then YES you must re gap them to the right specs...The only NKG spark plugs that do not come pre gapped are the ones with no number at the end of the part#..