Found out part number is e3.36 if anyone wants to know. Suppose to increase power and burn fuel better increase fuel economy . If anyone has used them let me know
I tried the E3's when I had the EFI on my GEN I, I also thought they were a waste of money, they seemed to foul eaiser the the ngk's did but In all fairness It was On an EFI bike with to much fuel.personaly Ill stick with NGK