The base C4 Corvette, introduced in 1984, was Motor Trend’s Car of the Year and a major leap in performance and refinement. By 1987, Chevrolet partnered with Callaway to offer a twin-turbo version (RPO B2K) as a factory option. Cars were shipped from Bowling Green to Callaway’s shop in Connecticut, modified, and then delivered to dealers with a full GM warranty. The 1987 Callaway featured twin turbos, intercoolers, signature megaphone exhausts, and twin NACA ducts on the hood. Otherwise, ...| CorvSport.com