Exhaust Manifold Smog Tube Eliminator - 1/2"-20
Correct block-off plug used when converting currently produced exhaust manifolds with holes for smog tubes back to pre-smog usage. Each 8 cylinder manifold requires 4 plugs per side.
1978-2017 Chevrolet Impala Parts - Emission Control Hardware
Classic Industries offers a wide selection of Emission Control Components for your 1978-2017 Chevrolet Impala. Classic Industries offers 1978-2017 Chevrolet Impala Catalytic Converters, 1978-2017 Chevrolet Impala Check Valves, 1978-2017 Chevrolet Impala EGR Valves, 1978-2017 Chevrolet Impala Emissions Sensors, 1978-2017 Chevrolet Impala Hardware, 1978-2017 Chevrolet Impala Hoses & Clamps, 1978-2017 Chevrolet Impala Mass Air Flow Sensor, 1978-2017 Chevrolet Impala Pulleys, 1978-2017 Chevrolet Impala Smog Pumps & Components, and 1978-2017 Chevrolet Impala Vapor & Charcoal Parts.