Both companies increased the capacity of the 650-strong motor to more than 700 «horses». The Callaway Cars due to the new supercharger and improved cooling system out of the engine brought to 757 liters. s., and offered customers a set of aerodynamic elements and other accessories for machines.
The Lingenfelter Performance Engineering is focused only on technical revision, showing a set of Stage 1, which increases the capacity of the power unit to 720 hp Judging by the title, in the near future is expected to more productive variants elaboration.
