I was at the auto parts store buying wires for a tune up I was doing on my 93 ford ranger. There was 3-4 different options. The prices ranged from $12-50. I called my Porsche mechanic and asked him why. He said there was a big difference in the shielding of Rfa as the noises in a car could really screw with the electronic ignition. He also stated that the better cables gave you better gas mileage.

So what is everybodies take on this? And how does it add to the controversy?