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
- 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 Int Pipe Rear Exhaust System Hanger for 1982-1987 GMC P2500 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 Tail Pipe Right Exhaust System Hanger for 1982-1988 Chevrolet P30 6.2L V8Special Price $10.15 Regular Price $13.99
- Walker Int Pipe Exhaust System Hanger for 1982-1988 GMC P2500 6.2L V8Special Price $10.15 Regular Price $13.99
- Walker Exhaust System Hanger for 1979-1989 Dodge Diplomat 3.7L 5.2L L6 V8Special Price $10.15 Regular Price $13.99
- Walker Tail Pipe Right Exhaust System Hanger for 1982-1988 GMC P3500 6.2L V8Special Price $10.15 Regular Price $13.99
- Walker Exhaust System Hanger for 1976-1978 GMC C15 Suburban 4.1L 5.0L 5.7L L6 V8Special Price $10.15 Regular Price $13.99
- Fel-Pro Exhaust Manifold Gasket Set for 1977-1979 Buick Skylark 5.0L 5.7L V8Special Price $10.69 Regular Price $14.99
- Fel-Pro Exhaust Manifold Gasket Set for 1975-1978 GMC C25 Suburban 5.0L 5.7L 6.6L V8Special Price $10.69 Regular Price $14.99
- Fel-Pro Exhaust Manifold Gasket Set for 1975-1996 Chevrolet G30 5.0L 5.7L 6.6L V8Special Price $10.69 Regular Price $14.99
- Fel-Pro Exhaust Manifold Gasket Set for 1967-1974 GMC G15 G1500 Van 4.6L 5.0L 5.4L 5.7L 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 1500 Series 4.6L V8Special Price $10.69 Regular Price $14.99
- Fel-Pro Exhaust Manifold Gasket Set for 1961-1962 Chevrolet P10 Series 4.6L V8Special Price $11.07 Regular Price $15.99
- Fel-Pro Exhaust Manifold Gasket Set for 1968-1974 Chevrolet P20 Van 5.0L 5.7L V8Special Price $11.07 Regular Price $15.99
- Fel-Pro Exhaust Manifold Gasket Set for 1966-1968 Mercury Park Lane 6.4L 6.7L 7.0L V8Special Price $19.70 Regular Price $27.99
- Fel-Pro Exhaust Manifold Gasket Set for 1971-1973 Ford M-400 5.9L 6.4L V8Special Price $20.27 Regular Price $28.99
- 2 pc Walker Front Pipe Left Exhaust System Hangers for 1975-1978 GMC C35 7.4L V8Special Price $20.48 Regular Price $28.99
- 2 pc Walker Front Pipe Left Exhaust System Hangers for 1975-1985 Chevrolet C30 7.4L V8Special Price $21.06 Regular Price $29.99
- 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 1968-1974 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 1965-1974 Chevrolet Corvette 6.5L 7.0L 7.4L V8Special Price $23.54 Regular Price $33.99
- Fel-Pro Exhaust Manifold Gasket Set for 2003-2008 Dodge Ram 2500 5.7L V8Special Price $30.62 Regular Price $43.99
- Fel-Pro Exhaust Manifold Gasket Set for 2009-2018 Dodge Durango 5.7L V8Special Price $41.21 Regular Price $58.99
- Fel-Pro Exhaust Manifold Gasket Set for 1994-1997 Ford F-350 7.3L V8Special Price $41.49 Regular Price $58.99