As the title says...what plugs do you all use? I normally use the AC Delco.

 

Most run the NGKs

 

ac delco iridiums,superceeds platinums. also they is a tsb on irdium gaps.

 

anybody running the E3's?

 

ngk tr6's here on both cars.thinking of switching to BR7EF ngk non projected tip.

 

anyone running the bosch +4s?

 

i'm not a big fan of spark plugs with multi grounds,think its just a big gimick.

 

I was going to ask about this plugs, have you tried it yet? I am thinking about getting this plugs.

 

i personally have not tried them but my cousin has them in his 5.3 and he said it cleaned up the idle and does get better fuel economy. i was thinking about buying them for my ls1 but know yet. waiting to hear feedback from some other guys that have tried them.

 

I've always used NGK tr6's with no issues.

 

all those overpriced plugs are a marketing gimmick

 

So has anybody tried the pulstars?

 

I have always run the NGKs.

 

NGK's seem to work very well in our cars but I also have an iridium plug called the WeaponX that is a little less than an NGK iridium and produces good results as well.

I sell 50 TR55's to 1 TR55IX, I also carry the E3 as well as most of the other brands but the NGK is by far the most popular. With heat ranges from 5 to 10 in a reasonable price. The TR7 (BR7EF) is popular with bigger cube hi hp cars and power adders

 

ngk tr55s for NA applications, ngk tr6 for nitrous.

/thread