Engines The F-54S and the F-91S are Thunder Tiger's
crowning examples of pure power and performance in the
most popular 4-stroke displacements. Smooth running, gobs
of torque, reliable idle, realistic sound, and finely
finished surfaces are all trademarks of each Thunder
Tiger 4-stroke engine.
Tiger engines are fabricated from the finest material
using ultra-precise computer controlled equipment in a
clean, modern environment under ISO 9001 registered
quality guidelines. Design is supervised by the world's
most renowned engine designer, Mr. kA Mbar. You can count
on Thunder Tiger for all your engine needs.