The 911 GT3 and GT3 RS, two barely-street-legal racecars from Porsche have been taken to new extremes with the GTurbo tuning program offered by 9ff. Transforming the 435 and 450 hp engines of the GT3 and GT3 RS into horsepower monsters are three bi-turbo conversion kits: the 750 hp GTurbo750, the 850 hp GTurbo850, and 1000 hp GTurbo1000. High quality parts such as titanium connecting rods and forged pistons are used to withstand the intense power created by the engine. The GTurbo850 conversion slashes the acceleration to 62 mph time of the GT3 RS by a full second, while the mind-blowing GTurbo1000 reaches 62 mph in just 2.9 seconds. The gearing for the GTurbo conversions allows for a possible top speed of 243 mph.

A 9ff GTurbo design kit is available allowing for better cooling and stability through aerodynamic modifications. Air intakes are incorporated into the rear fenders, sending cool air directly to each of the intercoolers. At high speeds air outlets in the front fenders reduce the buildup of air in the wheel wells. Two rear bumpers are available, one with a center exhaust option, and the other with the exhausts exiting the left and right sides of the bumper. The new front bumper features large air inlets to swallow cool air, along with LED indicators. New side skirts reduce drag and improve high speed stability.

9ff also offers a lightweight wheel package for the GTurbo conversion. Five double-spoke 9ff GTurbo design wheels measure 8.5×19 inches at the front and 11×19 inches at the rear axle, and fit the tires of the GT3 and GT3 RS. Optionally the 9ff GTurbo design wheels are available with a central locking device for better driving dynamics and performance.

The 9ff Porsche GTurbo design aerodynamic kit is available for € 8,900.00. Additionally the lightweight GTurbo design wheels are priced at € 4,980.00, while the center locking wheels are available for € 5,950.00. Pricing for engine tuning has not been released.

9ff GTurbo750: 750HP / 626.84 lb-ft. torque
9ff GTurbo850: 850HP / 671.09 lb-ft. torque
9ff GTurbo1000: 1000HP / 693.22 lb-ft. torque

Performance:
GTurbo850
Acceleration 0-62 mph: 3.0 seconds
Acceleration 0-124 mph: 8.9 seconds
Acceleration 0-186 mph: 18.7 seconds
Top Speed (gearing allowed): 243.5 mph

GTurbo1000
Acceleration 0-62 mph: 2.9 seconds
Acceleration 0-124 mph: 8.2 seconds
Acceleration 0-186 mph: 16.5 seconds
Top Speed (gearing allowed): 243.5 mph

9ff GTurbo Design Aerodynamic Kit:
-Front apron with LED indicators
-Side skirts
-Rear apron with middle or left/right exhaust
Price: € 8,900.00 (excludes tax, painting, and mounting)

9ff GTurbo Design Wheels:
Wheels: Five-spoke lightweight alloy
Front Wheels: 8.5×19 inches
Rear Wheels: 11×19 inches
Price: € 4,980.00 (excludes tax and painting)
9ff GTurbo Design Wheel with center lock: € 5,950.00 (excludes tax and painting)