As far as I know there isn't one commercially available and they aren't required, Yamaha don't limit torque in the first 1-4 gears to my knowledge on a Fazer and on their other bikes this is controlled by engine mapping. Mostly to get through emission/noise regulations.
Suzuki, Kawa used to to this a lot with their GSX-R and ZX ranges and went for cheap, limiter. All that's required is a simple resistor (of the correct rating) in line from gear position sensor, these cost pennies, companies market these plug and play units for £20 plus and all they're is a resistor. It fools the bikes ignition module into thinking it's in 4th so provides full ignition and or fuel map, early injected bikes Hayabusa for example (I had one) would run rich in the low gears.
Later bikes are controlled via more advanced ECU but they too can be fooled with the right know how.