I was told at about 10k miles to replace the plugs in my 05 evo? is this true? what is recommended.. No work done to it yet, Intake and excaust will probably all the mods?

I was looking at NGK 4055 plugs?

any help would be really cool

thx
eaton

P.s. Eaton = Newbie

 

Did u get the Free Maintenance stuff from Mitsu? If so.. go by that...
Unless you are going to mod the car then, go with what people have done here. My plugs look fine and I'm over 10K miles. I just got Dynoflashed and had my turboback, intake and Forge bov on for abit before getting tuned. The stock plugs are pretty good, believe it or not and putting more expensive plugs won't really make too much of a difference... unless you push alot more power with one step colder plugs. Check out the plugs on your car and if they look good, just make sure they are gapped right and you should be good for a bit longer.

 

If the car runs fine, dont touch them. My stock plugs at 19,000 miles looked new. If you do plan to change them go with the ngk bpr7es or the 8es( 1 step colder).

 

i just replaced mine at 19,400 and they actually looked pretty good but i dont care its not expensive and will insure a good spark

 

Replaced mine with the new ngk iridium ix's, BPR7IEX plugs. Lancer shop.com has them.

 

i say replace them every 6 months

 

how 2 =
https://www.evolutionm.net/forums/sh...d.php?t=118252

 

I would replace the plugs every 10k miles.

Never skimp on maintainence (imo)

 

The service interval on OEM plugs is 60,000 miles according to Mitsubishi. If you go that long, I would recommend taking them out once or twice just to see how they look. It will also help prevent them from seizing in the head after an extended time.