Ai Designs has been making a name for themselves over the past few years, customizing everything from 'Sclades to Skylines for a select clientele. When DC Shoes co-founder, Ken Block, decided his CLS55 AMG was too pedestrian in the performance and appearance department, the New York-based customizing firm got a call.

On the outside, the CLS got the in-vogue matte black treatment, while the chrome trimmings were bathed in a shiny piano black. A full body kit, including front bumper, side skirts, carbon fiber grill and spoiler were all sourced from Merc uber-tuner Brabus and Ai contracted a jeweler to create a custom DC logo that adorns the trunk lid.

The vented hood allows passersby to peer into the engine bay and get an eyeful of the AMG muscle that lurks underneath. Not content to leave the powerplant alone, Ai again tapped Brabus to provide their K8 engine kit, which, with the addition of a less restrictive exhaust, brings power output up to 575 HP.

A Brabus electronically controlled suspension module drops the CLS overtop 20-inch Radenergie R10 rollers, wrapped in Michelin Pilot Sport 2 rubber and 15-inch discs are under the pressure of eight-piston Brembos.

Inside, the Merc gets a custom slathering of interior materials, including a DC logo emblazoned onto the head rests. A Valentine One radar detector is hardwired, with the display etched into the rearview mirror.

The end result is incredibly trick, substantially quick and downright menacing. In short, we like.

(More pics after the jump.)