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 1965-1974 Iso Grifo 5.3L 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 1987-1988 Chevrolet R10 Suburban 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 1979-1989 GMC P2500 5.7L V8Special Price $11.07 Regular Price $15.99
- Fel-Pro Exhaust Manifold Gasket Set for 1960-1974 Chevrolet K20 Pickup 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 1980-1983 Oldsmobile Cutlass Cruiser 4.4L 5.0L V8Special Price $11.07 Regular Price $15.99
- Fel-Pro MS 94602 Exhaust Manifold Gasket SetSpecial Price $17.02 Regular Price $23.99
- Fel-Pro MS 9812 Exhaust Manifold Gasket SetSpecial Price $17.57 Regular Price $24.99
- Fel-Pro Exhaust Manifold Gasket Set for 1997-2001 Honda CR-V 2.0L L4Special Price $20.23 Regular Price $28.99
- Fel-Pro Exhaust Manifold Gasket Set for 1975-1976 Ford F-150 5.9L 6.4L V8Special Price $20.27 Regular Price $28.99
- Fel-Pro Exhaust Manifold Gasket Set for 1966-1971 Mercury Colony Park 6.4L 6.7L 7.0L V8Special Price $20.27 Regular Price $28.99
- Fel-Pro Exhaust Manifold Gasket Set for 1968-1974 Chevrolet C20 Pickup 6.5L 6.6L 7.4L V8Special Price $22.90 Regular Price $32.99
- Fel-Pro Exhaust Manifold Gasket Set for 1966-1975 Chevrolet El Camino 6.5L 6.6L 7.4L V8Special Price $22.90 Regular Price $32.99
- Fel-Pro Exhaust Manifold Gasket Set for 2003-2006 Chevrolet Trailblazer EXT 5.3L V8Special Price $26.64 Regular Price $37.99
- Fel-Pro Exhaust Manifold Gasket Set for 2004-2006 Pontiac GTO 5.7L 6.0L V8Special Price $26.64 Regular Price $37.99
- Fel-Pro Exhaust Manifold Gasket Set for 2001-2006 Chevrolet Silverado 1500 HD 6.0L V8Special Price $26.64 Regular Price $37.99
- Fel-Pro MS 96905 Exhaust Manifold Gasket SetSpecial Price $26.90 Regular Price $37.99
- Fel-Pro Exhaust Manifold Gasket Set for 1999-2013 GMC Sierra 1500 4.8L 5.3L 6.0L 6.2L V8Special Price $27.35 Regular Price $38.99
- Fel-Pro Exhaust Manifold Gasket Set for 2007-2013 Chevrolet Avalanche 5.3L 6.0L V8Special Price $27.35 Regular Price $38.99
- Fel-Pro Exhaust Manifold Gasket Set for 2004-2005 GMC Envoy XUV 5.3L V8Special Price $27.35 Regular Price $38.99
- MAHLE Exhaust Manifold Gasket Set for 2006 Hummer H1 6.6L V8Special Price $37.90 Regular Price $53.99