Focusnewb, I completely agree with your reply. Others have noted that the SD coil is not necessary and is not easy to install -- requiring spacer washers, leaving very little clearance for the wires on the coil. I have NGK Iridium plugs and 8mm FS wires. After testing the FS wires with an ohmmeter and finding that wires were poorly matched I went back to the stock wires. I could not find a site selling 10mm FR wires that fit the SPI stock coil. Can anyone post a link? Or provide instructions for crimping the stock wire connectors onto a set of performance wires? Should we use 9mm escort wires? Go with the SD coil and live wires and use the coil bracket off of an escort?