Emission controls in older carbureted engines relied on forcing additional air from pumps and valves located just before the exhaust manifold to ensure better burns. This is known as a secondary air injection system, and today has evolved to increase the efficiency of Catalytic Converters. Failed pumps and leaks are common signs of a bad Air Injection System, leading to off air and fuel ratios and poor acceleration. Remember to check the Manifold Gaskets and Seals for wear and tear when examining the exhaust.
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Walker Int Pipe Right Exhaust System Hanger for 1982-1988 Chevrolet P20 6.2L V8Special Price $9.78 Regular Price $13.99
- Walker Exhaust System Hanger for 1973-1974 GMC K25 K2500 Pickup 5.0L 5.7L V8Special Price $9.78 Regular Price $13.99
- Walker Tail Pipe Exhaust System Hanger for 1981-1982 Chevrolet C20 4.8L L6Special Price $9.78 Regular Price $13.99
- Walker Exhaust System Hanger for 1979-1986 GMC K3500 4.8L 5.7L L6 V8Special Price $9.78 Regular Price $13.99
- Walker Int Pipe Left Exhaust System Hanger for 1975-1988 Chevrolet P30 6.2L 7.4L V8Special Price $9.78 Regular Price $13.99
- Walker Int Pipe Rear Exhaust System Hanger for 1982-1987 GMC P2500 5.7L V8Special Price $9.78 Regular Price $13.99
- Walker Muffler Right Exhaust System Hanger for 1990-1991 GMC K3500 6.2L V8Special Price $9.78 Regular Price $13.99
- Walker Exhaust System Hanger for 1979-1986 GMC C2500 Suburban 5.0L 5.7L V8Special Price $9.78 Regular Price $13.99
- Walker Front Pipe Left Exhaust System Hanger for 1979-1985 GMC P3500 7.4L V8Special Price $9.78 Regular Price $13.99
- Walker Int Pipe Left Exhaust System Hanger for 1979-1988 GMC P3500 6.2L 7.4L V8Special Price $9.78 Regular Price $13.99
- Walker Tail Pipe Left Exhaust System Hanger for 1982-1988 GMC P3500 5.7L 6.2L V8Special Price $9.78 Regular Price $13.99
- Walker Exhaust System Hanger for 1981-1986 GMC K2500 Suburban 5.7L V8Special Price $9.78 Regular Price $13.99
- Walker Int Pipe Exhaust System Hanger for 1978 GMC C15 5.0L 5.7L V8Special Price $9.78 Regular Price $13.99
- Walker Exhaust System Hanger for 1975-1978 GMC C25 4.1L 4.8L 5.0L 5.7L L6 V8Special Price $9.78 Regular Price $13.99
- Walker Right Exhaust System Hanger for 1976-1977 GMC Jimmy 5.7L V8Special Price $9.78 Regular Price $13.99
- Walker Exhaust System Hanger for 1980-1986 GMC K2500 4.8L 5.7L 6.6L L6 V8Special Price $9.78 Regular Price $13.99
- Walker Exhaust System Hanger for 1975-1978 GMC G15 4.1L 5.0L 5.7L L6 V8Special Price $9.78 Regular Price $13.99
- Walker Int Pipe Right Exhaust System Hanger for 1982-1988 GMC P2500 6.2L V8Special Price $9.78 Regular Price $13.99
- Walker Exhaust System Hanger for 1979-1984 GMC K1500 4.1L 5.7L L6 V8Special Price $9.78 Regular Price $13.99
- Walker Exhaust System Hanger for 1973-1974 GMC K15 K1500 Suburban 5.0L 5.7L V8Special Price $9.78 Regular Price $13.99
- Walker Front Pipe Right Exhaust System Hanger for 1975-1978 GMC P35 7.4L V8Special Price $9.78 Regular Price $13.99
- Walker Exhaust System Hanger for 1973-1974 GMC K15 K1500 Pickup 5.7L V8Special Price $9.78 Regular Price $13.99
- Walker Right Exhaust System Hanger for 1988-1989 GMC R2500 6.2L V8Special Price $9.78 Regular Price $13.99
- Walker Exhaust System Hanger for 1979-1983 Jeep CJ5 2.5L 4.2L L4 L6Special Price $9.78 Regular Price $13.99
- Walker Tail Pipe Exhaust System Hanger for 1983-1985 Chevrolet K20 4.8L L6Special Price $9.78 Regular Price $13.99
- Walker Int Pipe Front Exhaust System Hanger for 1982-1987 GMC P3500 5.7L V8Special Price $9.78 Regular Price $13.99
- Walker Exhaust System Hanger for 1980-1986 Plymouth Gran Fury 3.7L 5.2L 5.9L L6 V8Special Price $9.78 Regular Price $13.99
- Walker Exhaust System Hanger for 1979-1981 Chrysler LeBaron 3.7L 5.2L L6 V8Special Price $9.78 Regular Price $13.99
- Walker Tail Pipe Left Exhaust System Hanger for 1975-1978 GMC C35 7.4L V8Special Price $9.78 Regular Price $13.99
- Walker Exhaust System Hanger for 1973 Chevrolet C20 Pickup 5.0L 5.7L V8Special Price $9.78 Regular Price $13.99
- Walker Int Pipe Rear Exhaust System Hanger for 1982-1987 Chevrolet P30 5.7L V8Special Price $9.78 Regular Price $13.99
- Walker Tail Pipe Exhaust System Hanger for 1981-1985 GMC K2500 4.8L L6Special Price $9.78 Regular Price $13.99
- Walker Exhaust System Hanger for 1975 GMC K15 4.1L 5.7L L6 V8Special Price $9.78 Regular Price $13.99
- Walker Front Pipe Right Exhaust System Hanger for 1975-1985 Chevrolet P30 7.4L V8Special Price $9.78 Regular Price $13.99
- Walker Exhaust System Hanger for 1975-1990 Chevrolet G10 4.1L 4.3L 5.0L 5.7L L6 V6 V8Special Price $9.78 Regular Price $13.99
- Walker Exhaust System Hanger for 1981-1983 Oldsmobile 98 4.1L V6Special Price $9.78 Regular Price $13.99
- Walker Exhaust System Hanger for 1980-1981 Pontiac Bonneville 3.8L V6Special Price $9.78 Regular Price $13.99
- Walker Exhaust System Hanger for 1981 Pontiac Laurentian 3.8L V6Special Price $9.78 Regular Price $13.99
- Walker Exhaust System Hanger for 1971-1982 Cadillac DeVille 4.1L 7.7L V6 V8Special Price $9.78 Regular Price $13.99
- Walker Exhaust System Hanger for 1982-1988 GMC S15 1.9L 2.0L 2.2L 2.5L 2.8L L4 V6Special Price $9.78 Regular Price $13.99
