Also consider Indexing. I'm not sure if it's an issue on the 4G63 but some other engines can benefit slightly from this. IIRC Indexing uses very, very thin washers to adjust exactly how many turns are required to have the front of the sparkplug in the most option position (whereever that may be) in the chamber.

 

philippines....my friend is an authorized dealer, get them directly from japan. I guess he gets these around $ 4-5 each. Sells it to me for $7.50.

 

Hi,

I got a set of Denso iridiums (1 range colder) from Z1 for $48 shipped back in Nov 2003.

I'm gonna swap em in at ~15K miles and do my tranny and diff fluids again. They are pre-gapped at .028. I checked my stockers awhile back and they looked good, but it seemed like they were gapped a little tighter (.026 or .027?). There was a long thread awhile back and the owner's manual says .024-.026, while the shop manual says .028. Hopefully it will work fine.

Thanks,

FB