ACDelco Spark Plug
Part No. 41-103
IRIDIUM; @ GAP .043 @

I believe these are the stock plugs, I found them at advanced auto because my dealer wanted $12 each. I was told between .044 and .040 gap is good for these cars?

 

the stock ones for the 2.2 are garbage. i burnt mine out within 15,000 miles of having them

 

Yeah man, I'm on 17,200 miles and I'm having problems. The car like misses a fire at idle and you can feel it. I feel like I've lost power too. It must be the plugs.

 

That's weird. I took a look at my stock plugs at about 35,000 miles and they looked pretty much good as new.

 

Mine were doing ok at around 30k... till I turboed it. Ya... they didn't like that I switched to NGK's 1 step colder.

And yes .044" is good

 

Gm stock plugs are good for 100000 miles

 

I heard this too, and do believe it somewhat except for the fact cylinders 2 and 4 didn't have any planinum left on the plugs and 1 and 4 showed significant wear at under 76000 miles

 

Any recommendations on replacement plugs for a NA 2.2? and maybe a link?

 

I went to the Bosch Platinum+4, they were the same price as the Delco OEM plugs. Here is a link to the manufacturer's Web site. The A/C Delco's were 5.50 a piece and the Platinum+4 were the same price. Didn't make since to pay the same amount for something less. Even though the OEM plugs are platinum, the Platinum+4 are "claimed" to be more. I noticed a better response, milage, and overall start up with new plugs; you should find this to be true regardless of plug type but I "think" the Platinum+4 for the money is the better buy. Bosch makes one step up, in quality and better spark performance without going to a multispark device, from this and they were around 7.50 per plug, the Bosch Platinum Ir Fusion.

 

Has anyone tried M-3 plugs???

Dimitri

 

NGK/ACDelco or Denso are what I almost always use in every ECO I work. You dont adjust gap on iridium plugs, if the gap isnt set right out of box the plug is damaged, ACD plugs have a plastic protective sleeve on them. +4s are gargbage, I wouldnt run a multi-electrode plug in my car, ever.

 

QFT the bosch are trash, stick to stocks unless ur boosted, they are drop in out of the box...no gapping required