Not sure which 2010 Chevy Cobalt Spark Plugs are right for you? We have over 146 customer reviews, with an average rating of 4.5, to help you find exactly what you're looking for. Here's what some of our customers have said:
"Engine ran smoother immediately after installation of the new Pulstar Plugs. RPMs dropped by 100-200 revs at 65 mph. At this point, mileage appears to be improving; however, cannot say for sure until after running through a few tank fills. Science behind design appears credible. Note slight increase in acceleration. If honeymoon continues, highly recommend as well worth the price." —Gerard S from Akron, NY bought a Pulstar Eco-MPG Series Spark Plugs for a 2010 Chevy Cobalt.