155 hp required a 50,000 mile test for EPA certification and Don Yenko eventually decided against using the turbochargers. Chevrolet was not interested in the marketing potential of a Turbo version as neither the Yenko-requested higher-compression engine blocks nor factory equipped turbo engines were ever built. The Stinger Vega was offered from Yenko Chevrolet through 1972 without turbochargers installed, but Yenko did offer the turbochargers as an aftermarket kit. The high performance and limited production of all Yenko-modified cars makes them valuable and prized to collectors. Production numbers See also Don Yenko Yenko Camaro Chevrolet Corvair: Yenko Stinger Chevrolet Vega References External links Yenko Stinger II Vega Yenko dealers at Yenko.net The 1970 Nova Yenko Deuce Automotive motorsports and performance companies Chevrolet Auto dealerships of the United States Muscle cars American companies established in 1949 Retail companies established in 1949 Retail companies disestablished in 1982 1949 establishments in Pennsylvania 1982 disestablishments in Pennsylvania