I have a completly stock 07 2.0 lsj with 12500 miles on it. we all know that these cars run rich. I decided to check the plugs and could not belive how fouled the plugs looked after this little milage. I know when modding (higher boost and such many people go to a smaller gap) I know this because I did search, but what I want to know is if there is a better plug and gap for a STOCK car, that may run a little better or should i just replace the stockers every 10,000 miles. Thanks for any help

 

your good to buy a set of ngk plugs they will help out alot and work for stock cars too.

 

I had ngk double plat. plugs that did the same thing. I put in some denso iridium plugs part #IK20, and have not hade a prob. since. I also noticed a boost in power and milage