The spark plugs I got were autolite IRIDIUM XP. They last longer, and they give a better performance than any other spark plugs. They fit my Chevy cruz 2011 1.4 liter engine. The only thing I had to do was buy a spark plug gap ring to gap the spark plug gap to the manufacturer specification gap on my engine 1.4 liter engine. I looked it up on Google, and it gave the manufacturer gap. They were cheaper on the Walmart app than any auto parts store. The ignition coil that I got from the Walmart app fit like a glove. The price was excellent also it was cheaper than any auto parts store . Both parts were cheaper in the Walmart app than Amazon or Ebay or any auto parts store, and I mean a lot less . I got my parts on time and delivered them to my door of my apartment.