Extreme Proformance spark plugs from Autolite. I am about to put them in and see how they work. These spark plugs are one of the brand’s most technologically advanced spark plugs ever. With an iridium-enhanced .6 mm finewire design and patented platinum sidewire technology, these spark plugs provide better durability and a more focused ignition for better overall ignitability and optimum performance.

 

Let me know how they work for you. I am in the market for plugs and i am interested if there is a clear difference between these and other plugs.

 

marketing department +1
you - $10

 

thanks, yeah i put them in and noticed an immediate difference at idle, it feels smoother down low and up high i give them

I guess i should say thanks?

 

where did you get them? Like at napa or carquest or something similar? Also, whats the part number and are these one step colder?

 

yeah i would liek to get these also about how much and where?

 

I bought them at napa auto, the ones i bought are not one step colder since I do not have stage 2 the regular ones are xp3923, and the one step colder plugs would be xp3922. they cost me about 25 bucks but they work much better than the ngk v powers that came stock on my car