Review on Delphi XS10390 Spark Plug Wire by Hector Smith

This is an original wiring harness but is extremely difficult if not impossible to install without the help of Firestone or some other high end auto repair shop. In my case, I took my 2001 Pontiac Aztek to a local mechanics shop to have the spark plugs and wiring harness replaced. The mechanic gave up after several attempts, in fact he even broke one of the old wires and he had to use one of the replacement kits he had bought. He explained that they didn't have the right tools to change the spark plugs. So if you're getting someone a set of wires and spark plugs, make sure that person has done it before. Now I have five of the six wires and I can't bring them back to Revane. Firestone won't use it, they also have to order their own parts, whether your parts are OEM or not. They say it's their policy. I also have to return the spark plugs to Advance Auto Parts, luckily I didn't use them.