hi I have a 2006 ss/sc cobalt and I am wanting to replace the spark plugs since I have owned the car a little over a year now I figured it wouldn’t be a bad idea. The car is bone stock so I am wondering what are the stock plugs for this car and what kind would you prefer also if you could tell me the stock gap size I would very much appreciate it thank you and have a good day!

 

Im not sure what the stock plugs are but a lot of people run the NGK BKR series plugs. You can probably find them on zzperformance.com. The information is definitely here somewhere if you read the sticky threads.