How do you remove top speed limiter on 99 Buick LeSabre?

You can't. It is computer controlled. Actually, that's not necessarily true.... All you need is a Chilton's manual to trace the location of the vehicle speed sensor (VSS) wire, which goes to your ECM. Find the wire, clip it and splice in a toggle switch to your dashboard, then run the wire back to the other side of the wire you snipped. Switch off, the VSS is disabled and probably, you will get a computer code or some check engine light that will come on. No big deal, after you do the dirty deed of speeding above and beyond what all of us disapprove of, just switch your toggle back on and POOF! Your VSS works again! (Sorry boys, I'm a gearhead...) Steelman1196 you need to buy a programmer from hypertech. you can get rid of a governor, adjust you're timing, adjust you're speedo for different size tire, regulate the fuel/air .....ect. 20-30 extra horses! depending nick Actually, that's not necessarily true.... All you need is a Chilton's manual to trace the location of the vehicle speed sensor (VSS) wire, which goes to your ECM. Find the wire, clip it and splice in a toggle switch to your dashboard, then run the wire back to the other side of the wire you snipped. Switch off, the VSS is disabled and probably, you will get a computer code or some check engine light that will come on. No big deal, after you do the dirty deed of speeding above and beyond what all of us disapprove of, just switch your toggle back on and POOF! Your VSS works again! (Sorry boys, I'm a gearhead...) Steelman1196