Chevrolet Corvette (C4) - B2K Callaway Twin-Turbo

B2K Callaway Twin-Turbo

In 1987, the factory B2K option appeared at dealers. The option's price was almost equal to the base price of the Corvette.

The Callaway Corvette was a Regular Production Option (RPO) B2K, the only time in Chevrolet's history a specialist manufacturer was entrusted with a technically advanced high performance RPO. The B2K option was critical in bringing a select few Corvettes to a higher performance level. Although often compared with Chevrolet's ZR-1 option, they were simply two different approaches to solving the issue of bringing a higher performance Corvette to market. The early B2K's produced 345 hp (257 kW) and 450 lb·ft (610 N·m) of torque. The later B2K's produced 450 hp (336 kW) and 613 lb·ft (831 N·m) of torque.

A derivative of the Twin Turbo Corvette, the 880 hp (656 kW) Callaway SledgeHammer, recorded a speed of 254.76 mph (410.00 km/h) on Ohio's Transportation Research Center track making it the fastest road-going car at the time.