IN BIG CITIES across America, the "it" car is the sleek CLS from Mercedes-Benz. The CLS is even better when dressed for success in optional AMG attire that includes a raucous 5.5-liter supercharged V-8, sport suspension, and massive brakes. But, for some, even the creases on AMG's trousers aren't sharp enough, so the automotive aftermarket is ready to help.
Brabus, one of the best-known Mercedes-Benz tuners, offers a host of hot hardware to amplify the already stunning CLS55.We tested Brabus's K8 version, seasoned with equal portions of power, looks, and handling.
Underhood, thrust is up a reported 81 ponies thanks to a titanium pulley that overdrives the factory twin-screw supercharger, high-flow air filters, and special spark/fuel calibration ($13,500 with warranty). Brabus improves venting via its larger-diameter stainless-steel exhaust system ($3195)…