Review on Iridium Spark 41 993 19256067 Chevrolet by Jeff Billingsley

Myb2010 GMC Sierra 1500 SLE Random misfires occurred. I checked my spark plugs and found them to be in good condition on the used side. They look like they were factory originals that got to my truck 112,000 miles ago. I wanted original Delco AC forks and wouldn't settle for anything less than platinum or iridium quality. After several searches on the internet I decided to buy these plugs from this seller. The supplier had excellent reviews, so I went with them. The parts were shipped almost immediately and even arrived a day earlier than expected. I checked the plug spacing when I installed them. All of them have been preinstalled according to OEM specification. Once they were installed, I cleared all of the misfire codes with my diagnostic scanner. It's been a few weeks since I installed these spark plugs and so far my performance and mileage have improved and I haven't had a misfire yet. I will definitely buy parts from this seller.