Just wondering what kind of spark plugs u guys use in your mitsu's? I know some of you use those iridium plugs and i was just wonderin how much they cost and if they make a noticable difference i.e. are they worth getting?

 

I have used the iridiums in a few cars and mostly they have been good. Have burnt a couple of them out though. Very over priced though usually hovering around the $20 per plug mark. Huge markup on them so shop around or work on the sales person.

 

i just use the recomended by the manufacter type ie ngk ect. due to good value for the price.

 

i got some bosch super4s for about $10 each but they dont fit. im using the factory1s at the moment.

 

I had problems with standard ones with the boost over 12psi (was was running 14-15psi boost). Put in Iridiums, they are great, but expensive!

Alex

 

i use NGK Iridium IV plugs and they run great. acceraltion is much smoother and mpg is a little higher. i think it was worth the money. they were something like $8 a plug though. i was pleased with them. i heard the K&N plugs were good though. anybody running with those?

 

I use stock plugs, but we have done a comparison on my friends skyline, and the iridium plugs lasted shorter and burnt out quicker then the Champion Golds he had put in there..