This is high quality replacement Igniter unit for various Ducati models. This igniter is a straight replacement for the stock Kokusan Denki BB1105 units and will fit all Ducati Monster 600, Monster 900, 900SS models that use a separate ignition unit for each cylinder. Check the applications listing for exact fitments. This is a great upgrade as the original Kokusan units used electronics from the early 90s. Our new igniters have modern and faster switching electronics which will help reach a higher spark voltage. These new igniters come with a full one year warranty.