Most people would say stay with the stock plugs, they usually work the best. NGK Iridiums are nice plugs, I have then in my Caliber and they work great. Give then a shot, see how they feel.
SRT4 Spark Plugs
Hey all,
I'm having an idle issue (Nothing too serious)so I was looking for a set of spark plugs for a stock SRT4 w/ bolt ons. I seen most pers with MS1 are running NGK Iridium. Is it alright to run the step colder plugs in the SRT4 in stock form?
I'm having an idle issue (Nothing too serious)so I was looking for a set of spark plugs for a stock SRT4 w/ bolt ons. I seen most pers with MS1 are running NGK Iridium. Is it alright to run the step colder plugs in the SRT4 in stock form?
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I think the general consensus is that the colder are only for MS1. I have the std temp in mind and am happy with them.
Run regular plugs on stock ECU.
If you have MS1, you can leave as-is, but you should get better performance with colder ones.
If you up the turbo or tinker with boost, WGA etc, then it's a must to run colder.
If you have MS1, you can leave as-is, but you should get better performance with colder ones.
If you up the turbo or tinker with boost, WGA etc, then it's a must to run colder.
Awesome!! Thanks for the info!
So oem plugs are ngk iridium and not the laser platinum? AutoZone says double platinum or better with a 0.05 gap?? Also I believe mine has had something done with the turbo or a tune from a diablo tuner bc it hits 20psi.
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