German tuner DMC - not to be confused with Doc Brown's DMC DeLorean in the sci-fi trilogy Back To The Future - has had its way with Italian supercars before, bringing some extreme Lamborghinis to the Geneva Motor Show a few years ago. Now, the tuner has gotten its hands on one of Ferrari's most powerful cars ever, the 789-horsepower 812 Superfast.

Dubbed the Superfast "Spia", DMC's package not only endows the grand tourer with even more power but also a dramatic aerodynamic kit. This package isn't a great surprise since the tuner had a hit with the "Spia" package for the F12berlinetta, the Superfast's predecessor.

First, let's talk power. Thanks in part to the fitment of a titanium exhaust system, DMC was able to increase the 812's output to a phenomenal 820 hp, which they claim allows the Ferrari to hit a top speed of almost 350 km/h (217 mph). Along with the extra power comes a more brutal exhaust note, too.

Visually, the Spia gets staggered 21/22-inch forged wheels and sport springs, which not only makes it look more aggressive but improves handling. Pirelli Sport tires are fitted to the Starshine Blue example here, with striking mixed metallic glitter. The wheels can be ordered in a range of finishes that includes Midnight Black. The front bumper splitter is another perfect example of form and function, not only giving the 812 a bolder look but improving stability via its own air channels.

The carbon fiber body kit is a big change over the stock car, and includes bumper flaps with available F1-style canard grills. There are extended side skirts, and at the back, a prominent spoiler wing that looks similar to the one used on the F12 package. A new rear diffuser and tinted lights are other unique touches.

The interior can also be customized with a new steering wheel and a choice of leathers and carbon fiber trim. There is even the option to redo the entire cabin. Finally, DMC guarantees that its components will not cause any "visible damage" and that the car can be restored to its OEM appearance if at any point the customer decides to do so. We doubt that many Spia customers would want to go back to the original, though.