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 1993 Cadillac Fleetwood 5.7L V8Special Price $10.69 Regular Price $14.99
- Fel-Pro Exhaust Manifold Gasket Set for 1970-1991 GMC Jimmy 5.0L 5.7L 6.6L V8Special Price $10.69 Regular Price $14.99
- Fel-Pro Exhaust Manifold Gasket Set for 1967-1974 GMC C25 C2500 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 1988-1995 Chevrolet C1500 5.0L 5.7L V8Special Price $10.69 Regular Price $14.99
- Fel-Pro Exhaust Manifold Gasket Set for 1978-1982 Buick LeSabre 4.4L 5.0L V8Special Price $10.69 Regular Price $14.99
- Fel-Pro Exhaust Manifold Gasket Set for 1975-1978 GMC C15 5.0L 5.7L 6.6L V8Special Price $10.69 Regular Price $14.99
- Fel-Pro Exhaust Manifold Gasket Set for 1955-1958 Chevrolet Sedan Delivery 4.3L 4.6L V8Special Price $11.07 Regular Price $15.99
- Fel-Pro Exhaust Manifold Gasket Set for 1965-1989 Excalibur Phaeton 5.0L 5.3L 5.7L V8Special Price $11.07 Regular Price $15.99
- Fel-Pro Exhaust Manifold Gasket Set for 2013-2016 Subaru WRX 2.0L 2.5L H4Special Price $14.38 Regular Price $20.99
- Fel-Pro Exhaust Manifold Gasket Set for 2000-2015 Subaru Outback 2.5L H4Special Price $14.38 Regular Price $20.99
- Fel-Pro Exhaust Manifold Gasket Set for 1965-1976 Ford F-350 5.8L 5.9L 6.4L V8Special Price $19.70 Regular Price $27.99
- Fel-Pro Exhaust Manifold Gasket Set for 1966-1971 Ford Custom 5.8L 6.4L 7.0L V8Special Price $19.70 Regular Price $27.99
- 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 1966-1967 Ford Galaxie 5.8L 6.4L 7.0L V8Special Price $19.70 Regular Price $27.99
- Fel-Pro Exhaust Manifold Gasket Set for 1966-1971 Ford Country Squire 5.8L 6.4L 7.0L V8Special Price $19.70 Regular Price $27.99
- Fel-Pro Exhaust Manifold Gasket Set for 1966-1967 AC 427 7.0L V8Special Price $19.70 Regular Price $27.99
- Fel-Pro Exhaust Manifold Gasket Set for 1965-1976 Ford F-250 5.8L 5.9L 6.4L V8Special Price $19.70 Regular Price $27.99
- Fel-Pro Exhaust Manifold Gasket Set for 1966-1967 Mercury Voyager 6.4L V8Special Price $19.70 Regular Price $27.99
- Fel-Pro Exhaust Manifold Gasket Set for 1966-1971 Ford Country Sedan 5.8L 6.4L 7.0L V8Special Price $20.27 Regular Price $28.99
- Fel-Pro Exhaust Manifold Gasket Set for 1965-1976 Ford F-100 5.8L 5.9L 6.4L V8Special Price $20.27 Regular Price $28.99
- Fel-Pro Exhaust Manifold Gasket Set for 1975-1977 Ford F-500 5.9L 6.4L V8Special Price $20.27 Regular Price $28.99
- Fel-Pro Exhaust Manifold Gasket Set for 1966-1971 Ford Galaxie 500 6.4L 7.0L V8Special Price $20.27 Regular Price $28.99
- Fel-Pro Exhaust Manifold Gasket Set for 1966-1971 Ford Custom 500 6.4L 7.0L V8Special Price $20.27 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 1963-1967 Ford Galaxie 4.3L 4.7L V8Special Price $20.33 Regular Price $28.99