Gemballa is known for being a bit flamboyant from time-to-time on its tuned Porsche creations. Some might feel the wings and bulging bodywork are just a bit too much, even if it comes with an infusion of crazy horsepower. If you fall into this category, we have good news – the latest package from Gemballa nixes the exterior bits and goes straight for the jugular by turning the already potent 911 Turbo and Turbo S into 828-horsepower monsters.


It’s called the Gemballa GTR 8XX Evo-R BiTurbo, and it will accelerate to 100 miles per hour quicker than the average person can say its name. Specifically, Gemballa says the Evo-R will hit 62 mph (100 km/h) in just 2.3 seconds, 124 mph (200 km/h) in 7.5 seconds, and continue pulling like a freight train to “over” 360 km/h, which is approximately 224 mph. That’s flat-out fast no matter how you cut it.

Gemballa GTR 8XX Evo-R BiTurbo

What does Gemballa do to achieve such performance? This time around it’s more than just some added boost and a special tune. The company delves into the heart of the 911’s biturbo 3.8-liter flat-six engine, adding reinforced connecting rods and larger valves to handle the extra power and airflow internally. New turbochargers are installed to supply more boost, and a completely redesigned exhaust system – from the headers all the way back to the tips – helps ensure the 911 is breathing properly. Additional intake tweaks are made, and to make it all work in harmony, Gemballa’s engine specialists dive into the electronics to with add-on ECUs. Even the gearbox is switched out for a stronger unit.

Of course, this all comes at a cost. Gemballa says the power upgrade package alone is €49,800, which is roughly $59,000 or nearly the cost of a new 707-horsepower Dodge Challenger SRT Hellcat. Mind you, that still doesn't include the car, which can approach $190,000 on its own. However, considering the Gemballa’s GTR 8xx Evo-R BiTurbo packs performance equal or even greater than hypercars costing twice as much, this sleeper 911 could be considered a relative bargain.

Source: Gemballa

Gallery: Gemballa GTR 8XX Evo-R BiTurbo

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Ultimate GEMBALLA power upgrade turns the Porsche 991 Turbo and Turbo S into the GEMBALLA GTR 8XX Evo-R BiTurbo.


Every now and then you are forced to rethink your trusted system of values and question the incontestable standards and sizes up to now in order to create space to broaden your own horizons. This, for example, becomes necessary when new achievements exceed your imagination. This is generally the case for GEMBALLA, the refining company based in Leonberg, when it presents its customized super sports cars.

The latest consciousness-expanding creation of the renowned Porsche specialists is a power upgrade for the Porsche 991 Turbo / Turbo S. The finely tuned six-cylinder boxer engine has an even better pick-up, is more agile and even faster and due to its elemental 828 HP (609kW) and a torque of 952 Nm, it enforces a complete reset of the accustomed sensory perception.

The core of the GEMBALLA power upgrade comprise of the comprehensive components of the modified turbocharging: this also includes an completely redesigned sports exhaust system including metal catalysts that reduce dynamic pressure and high-performance headers. New special turbochargers with optimised air supply, larger valves and reinforced connecting rods complete the hardware and its elemental potential develops thanks to a new gearbox and engine electronics. Here the GEMBALLA engine specialists dispense with add-on ECU´s and attach the greatest possible importance to durability and resilience of the enhanced performance engine.


The measured values are impressive: the GEMBALLA fuelled Porsche Turbo accelerates from zero to 100km/h in just 2.38 seconds. After 7.5 seconds the speed is already at 200, after 18.8 seconds it reaches 300 km/h. The propulsion of the catapult launch first ends after the 360 km/h mark and thus, outclasses even absolute super sports cars.

GEMBALLA offers customers that want to visually upgrade their Porsche a comprehensive range of vehicle body modifications, light alloy wheels and individualisation possibilities of the interior space.


Key facts GEMBALLA GTR 8XX Evo-R BiTurbo:       


Main components:

Compression reduced                                  

Inlet/outlet ports enlarged                       

Larger valves                                     

Reinforced connecting rods                                       



Intake to the loader                                       

Pressure pipe                                                   

Throttle body tube pipe to the Spinne                                  


Sport ESD                                                           

Electronic remapping gearbox and engine control unit                                                                   

Price:                                                                                    € 49,800.00



Carbon airbox                                                                    € 3,880.00


Performance at speed:                                                 828 PS / 609kW at 7.000 Rpm

Max. torque at speed                                                    952 Nm at 5.200 Rpm



    0 : 100                  2.38 sec.

    0 : 200                  7.5 sec              

    0 : 300                 18.8 sec

100 : 200                   4.7 sec             

200 : 300                 11.9 sec


Maximum speed                                              over 360 km/h