IF you are talking about the triumph tach, then yeah it is totally plug n play. The console comes off with 3 screws, might have to take the gas cap off (and put it back on to prevent losing a screw in the tank). Not sure about the blank plug tho, I think it just pops out from the back.
If you are talkin the drag specialties aftermarket tach, different ballgame, but I like mine
