Keep your Buick going with Regal Spark Plugs. Make the spark to get your engine going with new Spark Plugs. Bring a new feel to your car with Regal Spark Plugs. Upgraded Spark Plugs make more horsepower. Longevity of your vehicle can be enhanced with Regal Spark Plugs. Get your vehicle started faster with less effort with new Spark Plugs. Spark Plugs need to be changed anyway, so get the best now.