Germany's Gemballa is one of the most renowned Porsche tuners in the world, having produced some awe-inspiring bespoke Porsches over the years such as the Mirage GT based on the Carrera GT. After posting some teaser images on its Instagram page, Gemballa has revealed its new upgrade package for the Porsche 991 Turbo and Turbo S. Awkwardly dubbed the GTR 8XX EVO-R Biturbo, the exterior isn't exactly subtle thanks to a new carbon fiber body kit that includes a vented hood and a new bumper with massive intakes.

There's also a large splitter and flared wheel arches that extend the front by 1.18 inches and the rear by 1.97 inches to make room for larger wheels and tires. At the back is a gigantic wing that also includes inlets for the engine, and a large diffuser. These carbon fiber components can be finished in either matte or high gloss.

The cosmetic changes aren't just for show, either, as the Gemballa GTR 8XX EVO-R Biturbo also gets a significant power upgrade. In stock form, the 911 Turbo packs 540 hp and 486 lb-ft of torque, while the stock Turbo S boasts 580 horsepower and 516 lb-ft of torque. Amazingly, Gemballa has extracted 818 horsepower and 810 lb-ft of torque out of the car's twin-turbocharged 3.8-liter flat-six boxer engine. Unsurprisingly, this has a profound effect on the performance.

According to Gemballa, the EVO-R hits 0-62 mph in 2.38 seconds and rockets from 0-124 mph in only 7.5 seconds before topping out at 230 mph. Availability and pricing haven't been announced, but such extensive aftermarket tuning won't be cheap. It will be worth it, though - Gemballa has given the 911 Turbo the send-off it deserves before the next-generation model arrives.