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
- Walker SoundFX Exhaust Muffler for 2004-2011 Ford Ranger 2.3L 3.0L 4.0L L4 V6Special Price $92.46 Regular Price $131.99
- Fel-Pro Exhaust Manifold Gasket Set for 1999-2007 Jeep Grand Cherokee 4.7L V8Special Price $15.83 Regular Price $22.99
- 2 pc Walker SoundFX Exhaust Mufflers for 1967-1976 Dodge Charger 5.6L 5.9L 6.3L 6.6L 7.0L 7.2L V8Special Price $126.15 Regular Price $179.99
- 2 pc Walker SoundFX Exhaust Mufflers for 1968-1970 Plymouth Belvedere 6.3L V8Special Price $128.73 Regular Price $183.99
- 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
- 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
- Walker SoundFX Exhaust Muffler for 2000-2006 GMC Yukon XL 1500 5.3L V8Special Price $75.40 Regular Price $107.99
- Walker SoundFX Exhaust Muffler for 1987-1991 Chevrolet G10 5.7L V8Special Price $88.99 Regular Price $126.99
- Fel-Pro Exhaust Manifold Gasket Set for 1993 Cadillac Fleetwood 5.7L V8Special Price $10.69 Regular Price $14.99