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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- Walker Front Pipe Inlet Exhaust Pipe Flange Gasket for 1987-1990 Toyota Tercel 1.5L L4Special Price $2.61 Regular Price $3.99
- Walker Front Pipe Inlet Exhaust Pipe Flange Gasket for 1999-2000 Honda Civic 1.6L L4Special Price $3.89 Regular Price $5.99
- Walker Front Pipe To Muffler Exhaust Clamp for 1967-1974 GMC G15 G1500 Van 3.8L 4.1L L6Special Price $3.96 Regular Price $5.99
- Walker Front Pipe To Muffler Exhaust Clamp for 1963-1967 Chevrolet P30 Series 3.8L 4.1L 4.8L L6Special Price $3.96 Regular Price $5.99
- Walker Front Pipe To Muffler Exhaust Clamp for 1963-1966 Chevrolet C30 Pickup 3.8L 4.1L 4.8L L6Special Price $3.96 Regular Price $5.99
- Walker Front Pipe Inlet Exhaust Pipe Flange Gasket for 2011-2012 Lincoln MKZ 2.5L L4Special Price $2.25 Regular Price $2.99
- Walker Front Pipe Inlet Exhaust Pipe Flange Gasket for 2010-2012 Ford Fusion 2.5L L4Special Price $2.25 Regular Price $2.99
- Walker Front Pipe Inlet Exhaust Pipe Flange Gasket for 2010-2011 Mercury Milan 2.5L L4Special Price $2.25 Regular Price $2.99
- Walker Front Pipe Inlet Exhaust Pipe Flange Gasket for 2012-2013 Kia Soul 2.0L L4Special Price $2.56 Regular Price $3.99
- Walker Front Pipe Inlet Exhaust Pipe Flange Gasket for 2010-2011 Mercury Milan 2.5L L4Special Price $2.56 Regular Price $3.99
- Walker Front Pipe Inlet Exhaust Pipe Flange Gasket for 2010-2012 Ford Fusion 2.5L L4Special Price $2.56 Regular Price $3.99
- Walker Front Pipe Inlet Exhaust Pipe Flange Gasket for 1986-1988 Nissan Stanza 2.0L L4Special Price $2.56 Regular Price $3.99
- Walker Front Pipe Inlet Exhaust Pipe Flange Gasket for 2007-2010 Kia Rondo 2.4L L4Special Price $2.56 Regular Price $3.99
- Walker Front Pipe Inlet Exhaust Pipe Flange Gasket for 1983-1984 Toyota Cressida 2.8L L6Special Price $2.61 Regular Price $3.99
- Walker Front Pipe Inlet Exhaust Pipe Flange Gasket for 1993-1995 Honda Civic del Sol 1.5L L4Special Price $3.04 Regular Price $3.99
- Walker Front Pipe Inlet Exhaust Pipe Flange Gasket for 1988-1995 Honda Civic 1.5L 1.6L L4Special Price $3.27 Regular Price $4.99
- Walker Front Pipe Inlet Exhaust Pipe Flange Gasket for 1988-1993 Acura Integra 1.6L 1.7L 1.8L L4Special Price $3.27 Regular Price $4.99
- Walker Front Pipe Inlet Exhaust Pipe Flange Gasket for 1988-1991 Honda CRX 1.6L L4Special Price $3.27 Regular Price $4.99
- Walker Front Pipe Inlet Exhaust Pipe Flange Gasket for 1989-1992 Toyota Corolla 1.6L L4Special Price $3.35 Regular Price $4.99
- Walker Front Pipe To Muffler Exhaust Clamp for 1971-1974 Chevrolet G30 Van 4.1L 4.8L L6Special Price $3.71 Regular Price $4.99
- Walker Front Pipe To Muffler Exhaust Clamp for 1973-1975 Ford F-250 3.9L 4.9L L6Special Price $3.71 Regular Price $4.99
- Walker Front Pipe To Muffler Exhaust Clamp for 1963-1967 Chevrolet P20 Series 3.8L 4.1L 4.8L L6Special Price $3.71 Regular Price $4.99
- Walker Front Pipe To Muffler Exhaust Clamp for 1971-1972 Chevrolet C20 Pickup 4.1L 4.8L L6Special Price $3.71 Regular Price $4.99
- Walker Front Pipe To Muffler Exhaust Clamp for 1968-1972 Chevrolet P20 Van 4.1L 4.8L L6Special Price $3.71 Regular Price $4.99
- Walker Front Pipe To Muffler Exhaust Clamp for 1967-1972 GMC P25 P2500 Van 4.1L 4.8L L6Special Price $3.96 Regular Price $5.99
- Walker Front Pipe To Muffler Exhaust Clamp for 1978 Ford F-350 4.9L L6Special Price $3.96 Regular Price $5.99
- Walker Front Pipe To Muffler Exhaust Clamp for 1967-1974 Chevrolet G20 Van 3.8L 4.1L 4.8L L6Special Price $3.96 Regular Price $5.99
- Walker Front Pipe To Muffler Exhaust Clamp for 1967-1970 GMC K15 K1500 Pickup 3.8L 4.1L 4.8L L6Special Price $3.96 Regular Price $5.99
- Walker Front Pipe To Muffler Exhaust Clamp for 1967-1970 Chevrolet K20 Pickup 4.1L 4.8L L6Special Price $3.96 Regular Price $5.99
- Walker Front Pipe To Muffler Exhaust Clamp for 1969-1974 Ford E-200 Econoline 2.8L 3.9L 4.9L L6Special Price $3.96 Regular Price $5.99
- Walker Front Pipe To Muffler Exhaust Clamp for 1966 GMC PB25 Series 4.1L L6Special Price $3.96 Regular Price $5.99