Cusco Smart Cross Wrench

Cusco is a brand of Carrosser Co., Ltd., founded in December 1977 in Gunma Prefecture by rally driver Yuji Kase, who started by making parts for his own rally cars. The Cusco name, after the ancient Inca capital, came in 1984, when Kase's AE86 competed in the RAC Rally with an ECU Carrosser made.

Cusco makes chassis and drivetrain parts for street and competition use: limited-slip differentials, strut bars and chassis bracing, coilovers, roll cages and more, for a wide range of Japanese cars. Carrosser still competes in rallying and Japanese circuit racing, including Super GT's GT300 class.