What kind of spark plugs do you guys use? Is the higher price of the double iridium/platinum, etc justified?

 

I use NGK-R temp 7 plugs on my built H23T(280whp). I would also like to know if a more expensive plug is worth the investment. I change my plugs every few thousand miles and at 12$ for a set its not that bad.

 

I prefer the AutoLite Double Platinums. Moderately priced but definately worth it. I use those along with Magnecor wires.

 

ngk's all the way. imo, bosch and the other stuff just dont work as well for me. i guess there's a reason it's oem.

 

ngk guy.

 

ngk x 1000.The only way to go,and dont waste your time with irridium,unless you are just too lazy to change plugs.

 

how come everyday there is a new post about what plugs we use?

 

Exparamental plugs here. Not quite on the market yet... but they seem to work well