The Turbo version of Porsche 911, especially the ’S’ variant, is a car tuners just can’t get enough of. The latest is O.CT Tuning Porsche 991 Turbo featuring the tuner’s Stage 2 upgrade kit, and it’s packing 669 horsepower.

That is almost 670, but 669 sounds cooler, so we’re sticking to that. The figures are 669 horsepower and 880 Nm of torque, increased from the standard 560 horsepower and 660 Nm of torque.

To achieve that, O.CT Tuning Porsche 991 Turbo has undergone extensive engine mods, including modified engine management, modified gearbox control software, upgraded variable geometry turbochargers (VGT), two modified air suction systems, two charge air coolers, sports air filter and an optional exhaust system. The package can be fitted to both Turbo and Turbo S models.

With the kind of power under the hood, O.CT Tuning Porsche 991 Turbo can accelerate from 0 to 100 km/h in 2.77 seconds and reach a top speed of 335 km/h. The tuner also offers a diet Stage 1 kit with 603 horsepower and 830 Nm.