Cadenas_evo

Can anybody tell me what spark plugs are good for my EVO X?

T6

iTrader: (4)

NGK Iridium, 0 issues for 3 years (changed them of course).

Enyth

iTrader: (73)

Or you can use OEM ones. Those will do you just fine, especially just for daily driving and occasional track use.

Cadenas_evo

My car had NGK but thats all it said. Which ones are the OEM for the EVO? Sry for my ignorance im new with the EVO.

rmondoh

iTrader: (5)

The NGK's are OEM. That's what I've used and I've never had an issue with them. I would stick to those.

Cadenas_evo

Thank you.

Kracka

iTrader: (49)

You really only have two choices for the Evo X: OEM/NGK or HK$

The majority of people run the OEM/NGK plugs (exact same plug whether you buy them from the dealer in a Mitsu box or from a parts retailer in a NGK box). You'll be looking at about $50-55 for a set of 4.

Keep in mind the recommended service interval for spark plugs is 60k miles since they're iridium which is what I'd follow if your car is stock. I personally change mine annually though since I'm modified and have experienced a failure in the past.

Cadenas_evo

Ok.. my car is slightly modified. When I look at the RPM I can see that goes up n down and then it gets stable when the transmission is in park. So I figured maybe its time to change spark plugs also I've seen that im wasting a little too much in gas.

Kracka

iTrader: (49)

When does the RPM fluctuate? What is your mod list? Are you tuned?

Cadenas_evo

When idle its at 600 rpm but them some times it spikes up it doesnt shake it just spikes up. when i had my 350z i changed the spark plugs and it went away so maybe it could be the same?

i bought the car like 3 weeks ago and it has:

COBB HARD PIPES
COBB EXHAUST
ETS INTERCOOLER

and i do not know if it is tuned i think it is because on the side on one of my windows it said cobb tunning but i dont know if necessarly means anything.

Kracka

iTrader: (49)

Does the RPM fluctuation happen when the A/C is off, or only while it's on?

Cadenas_evo

it does it when is on and off.. but it is not too bad it will only spike it to 700 rpm from 600 rpm