Review on Enhance Performance with 6 New NGK Iridium IX Spark Plugs TR55IX # 7164 by Danny Poulin

According to Revane's "Your Garage" these spark plugs "will fit" my 2002 Buick Rendezvous. After all 6 spark plugs and wires were replaced the "Check Engine Soon" light came on, the code was P0301, Cylinder 1 Misfire. Couldn't find any problems with my work or damage from the replacement, I had to take the car to a workshop. After $150, they confirmed the spark didn't fit GM vehicles. I have to use the AC Delco brand! What a waste of time and money!