goff_d_p
Super Veteran
there is a specfied coad for each plug for different bikes. it just depends on the type of plug you want to use. but no engine mod needs to be done if your using the specified plug.
Denso Iridium Power: IU24 # 067700-9270
Denso Iridium Racing: IU01-24 #267700-1010
Hope that helps.
Denso Iridium Power: IU24 # 067700-9270
Denso Iridium Racing: IU01-24 #267700-1010
Hope that helps.