O.CT Tuning bumps the Chevrolet Corvette Stringray Convertible to 629 PS By Marcus De Guzman on January 21, 2015 in News 0 O.CT Tuning along with Edelbrock bumps the power of the new Chevy Corvette Stingray Convertible to 629 PS and 810 Nm Marcus De Guzman|| Continue Reading>>