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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- Fel-Pro MS 9275 B Exhaust Manifold Gasket SetSpecial Price $9.29 Regular Price $12.99
- Fel-Pro Exhaust Manifold Gasket Set for 1999-2007 Jeep Grand Cherokee 4.7L V8Special Price $15.83 Regular Price $22.99
- Fel-Pro Exhaust Manifold Gasket Set for 1975-1995 Chevrolet P30 5.7L 6.6L V8Special Price $10.69 Regular Price $14.99
- Fel-Pro Exhaust Manifold Gasket Set for 1987-1991 GMC R1500 Suburban 5.0L 5.7L V8Special Price $10.69 Regular Price $14.99
- Fel-Pro Exhaust Manifold Gasket Set for 1975-1978 GMC C15 Suburban 5.0L 5.7L V8Special Price $10.69 Regular Price $14.99
- Fel-Pro Exhaust Manifold Gasket Set for 1965-1966 Studebaker Daytona 4.6L V8Special Price $10.69 Regular Price $14.99
- Fel-Pro Exhaust Manifold Gasket Set for 1975-1986 Chevrolet K5 Blazer 5.0L 5.7L 6.6L V8Special Price $10.69 Regular Price $14.99
- Fel-Pro Exhaust Manifold Gasket Set for 1967-1974 GMC K25 K2500 Suburban 4.6L 5.0L 5.3L 5.4L 5.7L V8Special Price $10.69 Regular Price $14.99
- Fel-Pro Exhaust Manifold Gasket Set for 1960-1963 GMC 2500 Series 4.6L V8Special Price $10.69 Regular Price $14.99
- Fel-Pro Exhaust Manifold Gasket Set for 1989-1991 Chevrolet R1500 Suburban 5.7L V8Special Price $11.07 Regular Price $15.99
- Fel-Pro Exhaust Manifold Gasket Set for 1995 Chevrolet Tahoe 5.7L V8Special Price $11.07 Regular Price $15.99
- Fel-Pro Exhaust Manifold Gasket Set for 1987 GMC V2500 5.7L V8Special Price $11.07 Regular Price $15.99
- Fel-Pro Exhaust Manifold Gasket Set for 1978-1980 Oldsmobile Cutlass Salon 5.0L V8Special Price $11.07 Regular Price $15.99
- Fel-Pro Exhaust Manifold Gasket Set for 1961-1962 Chevrolet P20 Series 4.6L V8Special Price $11.07 Regular Price $15.99
- Fel-Pro Exhaust Manifold Gasket Set for 1976-1981 Pontiac LeMans 4.4L 5.0L 5.7L V8Special Price $11.07 Regular Price $15.99
- Fel-Pro Exhaust Manifold Gasket Set for 1967-1986 Chevrolet C10 Suburban 4.6L 5.0L 5.3L 5.4L 5.7L V8Special Price $11.07 Regular Price $15.99
- Fel-Pro Exhaust Manifold Gasket Set for 1965-1991 Avanti II 5.0L 5.3L 5.4L 5.7L 6.6L V8Special Price $11.07 Regular Price $15.99
- Fel-Pro Exhaust Manifold Gasket Set for 2005-2007 Mercury Montego 3.0L V6Special Price $16.82 Regular Price $23.99
- Fel-Pro Exhaust Manifold Gasket Set for 1973-1974 Chevrolet Blazer 7.4L V8Special Price $22.90 Regular Price $32.99
- Fel-Pro Exhaust Manifold Gasket Set for 1968-1974 GMC C25 C2500 Suburban 6.5L 6.6L 7.4L V8Special Price $22.90 Regular Price $32.99
- Fel-Pro Exhaust Manifold Gasket Set for 1991-1995 Chevrolet K2500 7.4L V8Special Price $22.90 Regular Price $32.99
- Fel-Pro Exhaust Manifold Gasket Set for 1987-1988 Chevrolet V20 Suburban 7.4L V8Special Price $22.90 Regular Price $32.99
- Fel-Pro Exhaust Manifold Gasket Set for 1987-1988 Chevrolet R20 7.4L V8Special Price $22.90 Regular Price $32.99
- Fel-Pro Exhaust Manifold Gasket Set for 1968-1985 Chevrolet K20 Suburban 6.5L 6.6L 7.4L V8Special Price $22.90 Regular Price $32.99
- Fel-Pro Exhaust Manifold Gasket Set for 1968-1974 GMC K35 K3500 Pickup 6.5L 6.6L 7.4L V8Special Price $22.90 Regular Price $32.99
- Fel-Pro Exhaust Manifold Gasket Set for 1989-1991 Chevrolet R2500 Suburban 7.4L V8Special Price $22.90 Regular Price $32.99
- Fel-Pro Exhaust Manifold Gasket Set for 1987-1988 Chevrolet R20 Suburban 7.4L V8Special Price $23.54 Regular Price $33.99
- Fel-Pro Exhaust Manifold Gasket Set for 1979-1995 GMC K3500 7.4L V8Special Price $23.54 Regular Price $33.99
- Fel-Pro Exhaust Manifold Gasket Set for 1987-1991 GMC R3500 7.4L V8Special Price $23.54 Regular Price $33.99
- Fel-Pro Exhaust Manifold Gasket Set for 1979-1980 GMC K1500 7.4L V8Special Price $23.54 Regular Price $33.99
- Fel-Pro Exhaust Manifold Gasket Set for 1979-1995 GMC C2500 7.4L V8Special Price $23.54 Regular Price $33.99
- Fel-Pro Exhaust Manifold Gasket Set for 1988-1995 Chevrolet C3500 7.4L V8Special Price $23.54 Regular Price $33.99
- Fel-Pro Exhaust Manifold Gasket Set for 1968-1974 GMC K25 K2500 Suburban 6.5L 6.6L 7.4L V8Special Price $23.54 Regular Price $33.99
- Fel-Pro Exhaust Manifold Gasket Set for 1966-1976 Chevrolet Caprice 6.5L 6.6L 7.0L 7.4L V8Special Price $23.54 Regular Price $33.99
- Fel-Pro Exhaust Manifold Gasket Set for 1976-1980 Chevrolet K10 7.4L V8Special Price $23.54 Regular Price $33.99
- Fel-Pro Exhaust Manifold Gasket Set for 1968-1974 GMC K15 K1500 Pickup 6.5L 6.6L 7.4L V8Special Price $23.54 Regular Price $33.99
- Fel-Pro Exhaust Manifold Gasket Set for 1990 Chevrolet V2500 Suburban 7.4L V8Special Price $23.54 Regular Price $33.99
- Fel-Pro Exhaust Manifold Gasket Set for 2009-2018 Dodge Charger 5.7L V8Special Price $41.21 Regular Price $58.99
- Fel-Pro Exhaust Manifold Gasket Set for 1969-1994 Chevrolet Blazer 5.0L 5.7L V8Special Price $10.69 Regular Price $14.99