i dnt kno to much about the hot shot cdi. was thinking about buying one. is there any pros and cons to them. is there anything else i need to get with it to make sure i get the right proformance out of it? i have an 86 250r and it is bone stock. next month i am getting the esr power kit witch is just the pipe, carb, and flange and filter. also what is the differnce between the 38 a.s. and the tmx 38? thanks for your info