These are one of the best 260EURos I spent on my TA.:) Fuel consumption dropped quite much- when riding within 90-100km/h I had mostly 5.3l/100km. With these new CDI's I have now with same riding style 4.5l/100km. Quite a difference, because I did nothing else, just swapped CDIs. Else I noticed that vibration from engine to foot pegs around 90km/h/5th gear also disappeared. I had this regardless how pedantic I was when syncing carbs. Drawback is that these CDI's have sharp corners and don't fit good on my stock holders.