Dynatek "Dyna" Wires are for use on vehicles with electronic advance ignitions or other sensitive electronic equipment. You should use DYNA suppression wires with a high grade graphite core for best performance and electrical noise suppression. These wires ensure maximum energy transfer and a 135 degree snap boot for easy installation. Each kit comes with 1 black wire, each end has a 90 degree spark plug boot already installed. The kit also includes 2 straight boots for the coils, along with 2 90 degree boots for the coils.
You will need to cut this cable to the required length, then add either a straight or 90 degree end whichever is best for your application. This 4 foot long cable is more than enough to make both wires for your twin.