This Chevrolet Corvette C4 air injection emissions bypass valve is a vital component for your vehicle's exhaust and emission system. Made in the United States, this vintage part has an OE/OEM part number of 17088106 and a manufacturer part number of 17088106. It is designed to fit perfectly. This valve is a secondary air and smog pump that helps to reduce your vehicle's emissions, making it more environmentally friendly. It is compatible with most Corvette C4 models from 1988 to 1991 and is an excellent choice for anyone looking to upgrade their car's emissions system.