Geiger, German tuner of all things 'Murrican (and usually high-performance), has decided to try...wait for the pun...its hand at hybrid tuning with the Chevy Tahoe Tri-Mode (there it is!).
Instead of shooting for the moon with 1,000 horsepower or some such nonsense, Geiger has put its powers through a different filter to "get even more economic and environmentally compatible".