The space division of the University of Colorado as part of a larger program, has studied DANTE or "Demonstration Afterburning and Nozzle of a Turbine Engine" on a known AMT AT-450. We can see the test bench. The thrust was extensively increased.

"Dante on a AMT"

-Another program of the same University is the Biomite, also installed on an AMT AT-450. Using "Paraffin-Synthetic-Kerosene" fuels by modifying the combustion chamber to reach higher temperatures.

"Biomite program"