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 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
- Walker Muffler Right Exhaust System Hanger for 1990-1991 Chevrolet V3500 6.2L V8Special Price $9.78 Regular Price $13.99
- Walker Int Pipe Exhaust System Hanger for 1983-1985 Chevrolet K20 4.8L L6Special Price $9.78 Regular Price $13.99
- Walker Exhaust System Hanger for 1979-1990 GMC G2500 4.1L 4.3L 5.0L 5.7L 6.6L L6 V6 V8Special Price $9.78 Regular Price $13.99
- Walker Exhaust System Hanger for 1973-1974 Chevrolet Blazer 5.0L 5.7L V8Special Price $9.78 Regular Price $13.99
- Walker Exhaust System Hanger for 1980-1986 GMC K1500 Suburban 5.7L V8Special Price $9.78 Regular Price $13.99
- Walker Right Exhaust System Hanger for 1988 Chevrolet R20 6.2L V8Special Price $9.78 Regular Price $13.99
- Walker Exhaust System Hanger for 1979-1986 GMC C2500 4.1L 5.0L 5.7L 6.2L L6 V8Special Price $9.78 Regular Price $13.99
- Walker Tail Pipe Right Exhaust System Hanger for 1975-1985 Chevrolet C30 7.4L V8Special Price $9.78 Regular Price $13.99
- Walker Front Pipe Exhaust System Hanger for 1980-1985 GMC C2500 4.8L L6Special Price $9.78 Regular Price $13.99
- Walker Exhaust System Hanger for 1987 Chevrolet R10 Suburban 5.0L V8Special Price $10.15 Regular Price $13.99
- Walker Exhaust System Hanger for 1973-1986 Chevrolet K10 Suburban 5.0L 5.7L V8Special Price $10.15 Regular Price $13.99
- Walker Int Pipe Exhaust System Hanger for 1991 GMC Sonoma 2.8L 4.3L V6Special Price $10.15 Regular Price $13.99
- Walker Right Exhaust System Hanger for 1988-1991 GMC R3500 6.2L V8Special Price $10.15 Regular Price $13.99
- Walker Right Exhaust System Hanger for 1987 GMC R1500 6.2L V8Special Price $10.15 Regular Price $13.99
- Walker Exhaust System Hanger for 1973-1986 Chevrolet C10 Suburban 4.1L 5.0L 5.7L L6 V8Special Price $10.15 Regular Price $13.99
- Walker Int Pipe Right Exhaust System Hanger for 1975-1988 Chevrolet P30 6.2L 7.4L V8Special Price $10.15 Regular Price $13.99
- Walker Exhaust System Hanger for 1987 GMC R2500 5.0L 6.2L V8Special Price $10.15 Regular Price $13.99
- Walker Int Pipe Exhaust System Hanger for 1980-1986 Chevrolet K10 5.0L 5.7L V8Special Price $10.15 Regular Price $13.99
- Walker Exhaust System Hanger for 1976-1982 Chevrolet K5 Blazer 4.1L 5.0L 5.7L L6 V8Special Price $10.15 Regular Price $13.99
- Walker Exhaust System Hanger for 1975-1978 GMC G35 4.8L 5.7L L6 V8Special Price $10.15 Regular Price $13.99
- Walker Int Pipe Rear Exhaust System Hanger for 1982-1987 GMC P3500 5.7L V8Special Price $10.15 Regular Price $13.99
- Walker Int Pipe Exhaust System Hanger for 1987 GMC V1500 5.0L V8Special Price $10.15 Regular Price $13.99
- Walker Exhaust System Hanger for 1973 GMC C15 C1500 Pickup 5.0L 5.7L V8Special Price $10.15 Regular Price $13.99
- Walker Int Pipe Front Exhaust System Hanger for 1982-1987 Chevrolet P30 5.7L V8Special Price $10.15 Regular Price $13.99
- Walker Exhaust System Hanger for 1975-1978 GMC K15 Suburban 5.7L V8Special Price $10.15 Regular Price $13.99
- Walker Exhaust System Hanger for 1987 Chevrolet R20 5.0L 6.2L V8Special Price $10.15 Regular Price $13.99
- Walker Exhaust System Hanger for 1979-1986 GMC C3500 4.8L 5.7L L6 V8Special Price $10.15 Regular Price $13.99
- Walker Tail Pipe Left Exhaust System Hanger for 1975-1985 Chevrolet C30 7.4L V8Special Price $10.15 Regular Price $13.99
- Walker Exhaust System Hanger for 1979-1980 Plymouth Volare 3.7L L6Special Price $10.15 Regular Price $13.99
- Walker Right Exhaust System Hanger for 1982-1986 GMC C1500 6.2L V8Special Price $10.15 Regular Price $13.99
- Walker Exhaust System Hanger for 1973-1974 Chevrolet K20 Pickup 5.0L 5.7L V8Special Price $10.15 Regular Price $13.99
- Walker Int Pipe Right Exhaust System Hanger for 1975-1978 GMC P35 7.4L V8Special Price $10.15 Regular Price $13.99
- Walker Right Exhaust System Hanger for 1988 Chevrolet R30 6.2L V8Special Price $10.15 Regular Price $13.99
- Walker Exhaust System Hanger for 1981-1983 Dodge Mirada 3.7L 5.2L L6 V8Special Price $10.15 Regular Price $13.99
- Walker Front Pipe Right Exhaust System Hanger for 1979-1985 GMC P3500 7.4L V8Special Price $10.15 Regular Price $13.99
- Walker Tail Pipe Right Exhaust System Hanger for 1982-1988 Chevrolet P20 6.2L V8Special Price $10.15 Regular Price $13.99
- Walker Left Exhaust System Hanger for 1976-1977 GMC Jimmy 5.7L V8Special Price $10.15 Regular Price $13.99
- Walker Exhaust System Hanger for 1987 GMC R1500 5.0L 5.7L V8Special Price $10.15 Regular Price $13.99
- Walker Exhaust System Hanger for 1979-1986 Jeep CJ7 2.5L 4.2L L4 L6Special Price $10.15 Regular Price $13.99
- Walker Exhaust System Hanger for 1977-1986 Chevrolet K30 4.8L 5.7L L6 V8Special Price $10.15 Regular Price $13.99
- Walker Int Pipe Exhaust System Hanger for 1987 Chevrolet V10 5.0L V8Special Price $10.15 Regular Price $13.99
- Walker Exhaust System Hanger for 1975-1986 Chevrolet C30 4.8L 5.7L L6 V8Special Price $10.15 Regular Price $13.99
- Walker Muffler Exhaust System Hanger for 1988-1989 GMC V3500 6.2L V8Special Price $10.15 Regular Price $13.99
- Walker Int Pipe Right Exhaust System Hanger for 1979-1988 GMC P3500 6.2L 7.4L V8Special Price $10.15 Regular Price $13.99
- Walker Left Exhaust System Hanger for 1987 Chevrolet R10 6.2L V8Special Price $10.15 Regular Price $13.99