German tuner 9ff has a set of conversion kits for the Porsche 997 GT3 and and 997 GT3 RS that, as they boast, can turn a sports car into a supercar.

First off, let's get to the core goodies. A bi-turbo conversion kit that can boost power up to 1000 hp. This allows for the creation of 3 seperately named models : the 9ff GTurbo750, GTurbo850 and GTurbo1000. The numbers, of course, denoting the horsepower figures. The torque figures, respectively, being 850 Nm, 910 Nm and 940 Nm.

Performance times for the GTurbo1000 are 2.9 seconds for the 0 to 100 km/h sprint and a mere 8.2 seconds to reach 200 km/h. The 300 km/h mark is reache in 16.5 seconds. A top speed of 392 km/h is also possible, dependent on gearing selection.

An aerodynamic kit is also available, which includes air intakes on the quarter panel for the intercooler and air outlets at the front to help reduce pressure in the wheel wells at high speeds.

There are also new front (with LED indicators) and rear aprons, side skirts and options for side exhausts.

The aerodynamic kits is priced at 8,900 euros, with taxes, mounting and painting excluded.

A set of 5 double spokes light alloy wheels, 8,5x19" / 11x19" (front/back), can be had for 4,980 euros (taxes excluded). A set of GTurbo design rims with a central lock system comes in at 5,950, taxes and painting excluded.

Prices for engine tuning were not made available.