Not sure which 2007 Chevy Cobalt Ignition Systems are right for you? We have over 319 customer reviews, with an average rating of 4.5, to help you find exactly what you're looking for. Hunter S from Naples, FL said, "Very easy installation. The gap was already set. It is a huge difference in power, much quicker throttle response. I would recommend these to everyone. I should have done it a long time ago"