These wire are extremely high quality. When tested with an ohm meter prior to installation, they registered @28 ohms. The stock wires were Delco, and registered over @800 ohms. The Delco wires were 7 years old, and were causing our LS-2 equipped 2007 Corvette(15,450 miles) to misfire at idle, and also while cruising. This was to be expected with OEM wires. The MSD wires, right out of the box are too tight a fit. I called MSD customer support, and told them these wires needed to be about 1 inch longer. However, the tech told me the MSD wire spark plug boot was designed to be bent up to a 45 degree angle. I was amazed that this feature was built into the spark plug boot. I did what they instructed, and this wire set fit perfectly, and still checked out at @28 ohms. There were no printed instructions or directions on the box telling me of this ability to bend the plug boot for a perfect fit. The tech promised this would be corrected. The low resistance is created, because the OEM style carbon core is wrapped with copper wire. They claim @ 30 to 40 feet of copper wire per foot of ignition wire is would around the core. One would expect the copper wire to cause interference with the radio and electronics, but just the opposite is the case. This style of wire is also known as Magnetic Suppression Wire. There is a very small electro- magnetic field around these wires, and with the copper windings- very little resistance. The Corvette started immediately, the idle was smooth once again, and the acceleration was noticeably "crisp" and strong. These wires should last a lot longer than 7 years or 15,000 miles- truly a value for the money and they are American made!
Ashlee C.
AshleeLynn
