SO does the kit include new spark plugs or do they just use stock plugs at a different gap , im surprised that nobody has asked this question yet



1989 Turbo Trans Am #82, 2007 Cobalt SS G85

stock plugs, none included in the kit


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yup none in the kit


so no plugs avaliable , and we have mentioned it

well thats disappointing but it does show you that gm didnt see a problem with using the stock ones with boost and they feel that they will hold up, ive actually had good results with the stockers i like them even better than the champion plugs



1989 Turbo Trans Am #82, 2007 Cobalt SS G85

Actually I think they left the stock one's in there for a reason.

The gm reflash made my car run rich (9.5-10 afr). Running that rich, it could be because I have colder plugs that are not burning hot enough to burn enough of the fuel.

That is what I was told by a guy who built his own 8 second rwd ecotec cavalier. He told me it is possible, but he was not sure since he was only making that speculation from what I had told him about my car and how it was running.

I got it running great with an fpr and lowering the base fuel pressure, but I am tempted to remove it and try the stock plugs out.



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