Dyna Glide ModelsSuper Glide, Super Glide Sport, Super Glide Custom, Dyna Glide Convertible, Super Glide T-Sport, Dyna Glide Police, Dyna Switchback, Low Rider, Street Bob, Fat Bob and Wide Glide.
If it's a twin cam you want original HD plugs as the knock sensors work via those and some aftermarket plugs can cause issues. The sensors on the M8 I thought were acoustic mounted to the heads and may give you more leeway.