If youre changing a coil or cap to a new design you could find yourself searching for different terminals for the coil wire.MSD offers this 18 long 90° male coil terminals and boots are installed on both sides to connect to an HEI s tyle terminal. A terminal adapter is also supplied to adapt to a female socket style distributor cap.Made in USA Also remember that the coil wire sees eight times the use of each plug wire so changing the coil wire as maintenance through the race season is recommended.