Dual-mode performance exhaust

With the dual-mode performance exhaust option, power output for the Coupe, Convertible and Grand Sport rises from 430 hp to 436 hp and from 424 lb-ft of torque to 428 lb-ft. For performance enthusiasts this system also gives the Corvette® a more aggressive exhaust sound character. Similar in design and function to the exhaust system used on the Z06®, the dual-mode exhaust uses vacuum-actuated outlet valves to control engine noise during low-load operation; they open for maximum performance during high-load operation.