I am getting denso iridium IX IK-16 plugs for my 02 lancer with magnacore wires. First off is that a good setup or should I go for other plugs? I do not have a turbo or a supercharger. My main question is will these plugs be pre-gapped or do I have to gap them and if so What should I gap them too? Thank you

 

set them to .044
you won't want to change the gap unless running FI or heavy N/A.

 

iridiums are pre-gapped and shouldn't be gapped. the electrode may break if gapped.

some people have used them. dunno how many complained about them.

 

Scratch one for a complainer.....

 

really? was it when you were NA or turbo? hehe, or both?

 

When I was aspirated, I tried EVERY plug that was on the market and rated their performance, durability, longevity... basically, the best bang for the buck. I tried from NGK to STP to Bosch etc., from iridiums to coppers to platinums etc etc.... and essentially, the NGK V-Power combined the longest life, not a bad hit on the wallet, with some decent performance "gain" ( I really didnt feel any gain on the butt dyno with any plug, to be honest with you). After that, I exclusively used NGK and now that I have a hairdryer, all I use is the NGKs, only two stages colder.