RUF’s highest horsepower kit option for the 997.1 Turbo engine. Producing an unbelievable 737 horsepower and an earth-moving 690 ft-lb of torque with 600 ft-lbs available from 3000-6000 rpm. The power output is simply amazing. Getting to that level of reliable horsepower is no easy task, and considerable modifications to the power plant and drivetrain are required. The full compliment of upgrades are performed on this motor package including but not limited to larger turbochargers, titanium connecting rods, increased cooling for the transmission, a new stronger clutch and limited slip differential, as well as an increase in displacement to 3.8 liters. This is an extremely extensive modification and will require shipment of the powerplant to Pfaffenhausen. Please inquire for a complete quote.