this is a new pair of dyna hi voltage ignition coils. they are the green 3 ohm type. part number dc1-1. suitable for gsf400 gsf600 gsf1200 bandit gs550/750/850/1000 gsx750/1100 inc all katanas. and gsxr750 f/g/h/j/k/l/m/wp gsxr1100 g/h/j/k/l/m/n wp.also same fitment as used on z900/1000/1100 kawasakis. see our other listings for more dyna coils and ignitions .