To confuse the issue even further, you really should've bought the Bougicord wires, not the Bosch product. While Bosch does make some good stuff they also make some absolute garbage as well. I would not rate their wires as absolute garbage but they are close. The factory wires are made by Bougicord and they are good stuff. While you can still get Bosch Super spark plugs for about a buck apiece and they are a good product, you can purchase the correct factory Volvo spark plug kit for about $13.00. You only change them out every 30K, spend a little bit more money and get the right stuff. The cap and rotor have always been Bosch.

Mark