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 1967-1974 GMC C15 C1500 Pickup 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 1965-1974 Iso Grifo 5.3L V8Special Price $10.69 Regular Price $14.99
- Fel-Pro Exhaust Manifold Gasket Set for 1988-1995 Chevrolet C3500 5.7L V8Special Price $10.69 Regular Price $14.99
- Fel-Pro Exhaust Manifold Gasket Set for 1987-1988 Chevrolet V30 5.7L V8Special Price $10.69 Regular Price $14.99
- Fel-Pro Exhaust Manifold Gasket Set for 1978-1987 Oldsmobile Cutlass 4.4L 5.0L 5.7L V8Special Price $10.69 Regular Price $14.99
- Fel-Pro Exhaust Manifold Gasket Set for 1975-1986 Chevrolet C10 5.0L 5.7L 6.6L V8Special Price $10.69 Regular Price $14.99
- Fel-Pro Exhaust Manifold Gasket Set for 1969-1974 Checker Taxicab 5.3L 5.7L V8Special Price $10.69 Regular Price $14.99
- Fel-Pro Exhaust Manifold Gasket Set for 1987-1988 Chevrolet R10 Suburban 5.0L 5.7L V8Special Price $11.07 Regular Price $15.99
- Fel-Pro Exhaust Manifold Gasket Set for 1978-1987 Oldsmobile Cutlass Supreme 4.4L 5.0L 5.7L V8Special Price $11.07 Regular Price $15.99
- Fel-Pro Exhaust Manifold Gasket Set for 1990-1992 Cadillac Brougham 5.0L 5.7L V8Special Price $11.07 Regular Price $15.99
- Fel-Pro Exhaust Manifold Gasket Set for 1977-1981 Buick Century 4.4L 5.0L 5.7L V8Special Price $11.07 Regular Price $15.99
- Fel-Pro Exhaust Manifold Gasket Set for 1975-1978 GMC K25 5.0L 5.7L 6.6L V8Special Price $11.07 Regular Price $15.99
- Fel-Pro Exhaust Manifold Gasket Set for 1955-1957 Chevrolet Two-Ten Series 4.3L 4.6L V8Special Price $11.07 Regular Price $15.99
- Fel-Pro Exhaust Manifold Gasket Set for 1977-1992 Oldsmobile Custom Cruiser 5.0L 5.7L V8Special Price $11.07 Regular Price $15.99
- Fel-Pro Exhaust Manifold Gasket Set for 1993-2015 Subaru Impreza 1.8L 2.0L 2.2L 2.5L H4Special Price $14.85 Regular Price $20.99
- Fel-Pro Exhaust Manifold Gasket Set for 2002-2007 Dodge Ram 1500 4.7L V8Special Price $15.35 Regular Price $21.99
- Fel-Pro Exhaust Manifold Gasket Set for 1966-1968 Mercury Montclair 6.4L 6.7L 7.0L V8Special Price $19.70 Regular Price $27.99
- Fel-Pro Exhaust Manifold Gasket Set for 1975-1996 Ford E-150 Econoline Club Wagon 5.0L 5.8L V8Special Price $19.76 Regular Price $27.99
- Fel-Pro Exhaust Manifold Gasket Set for 1987-1991 Ford LTD Crown Victoria 5.0L 5.8L V8Special Price $19.76 Regular Price $27.99
- Fel-Pro Exhaust Manifold Gasket Set for 1999-2013 GMC Sierra 1500 4.3L V6Special Price $19.78 Regular Price $27.99
- Fel-Pro Exhaust Manifold Gasket Set for 1962-1970 Ford Falcon 3.6L 4.3L 4.7L 5.0L 5.8L V8Special Price $20.33 Regular Price $28.99
- Fel-Pro Exhaust Manifold Gasket Set for 1979-1995 GMC C2500 Suburban 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 2004-2007 Cadillac CTS 5.7L 6.0L V8Special Price $26.64 Regular Price $37.99
- Fel-Pro Exhaust Manifold Gasket Set for 2000-2014 Chevrolet Tahoe 4.8L 5.3L 6.0L 6.2L V8Special Price $26.64 Regular Price $37.99
- Fel-Pro Exhaust Manifold Gasket Set for 2003-2009 Hummer H2 6.0L 6.2L V8Special Price $27.35 Regular Price $38.99
- Fel-Pro Exhaust Manifold Gasket Set for 2000-2013 Chevrolet Suburban 2500 6.0L V8Special Price $27.35 Regular Price $38.99
- Fel-Pro Exhaust Manifold Gasket Set for 2009-2010 Jeep Commander 5.7L V8Special Price $42.05 Regular Price $59.99