The guys at Nortons are very knowledgeable and extremely nice to their customers. Professional is an understatement. They were so helpful to this novice when I was deciding what to buy. They personally showed me everything and showed me the differences between them. Price was very close to internet pricing. Im glad I chose to support this local business. If you need anything for your car, give these guys a try. You wont be dissapointed. I promise youll be glad u did!