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 2010-2012 Ford Fusion 2.5L L4Special Price $2.56 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
- 2 pc Walker Muffler Exhaust System Insulators for 1996-2000 Plymouth Voyager 3.0L 3.3L 3.8L V6Special Price $16.44 Regular Price $22.99
- 2 pc Walker Muffler Exhaust System Insulators for 2004-2011 Ford Ranger 2.3L L4Special Price $16.95 Regular Price $23.99
- 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 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 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 Muffler Exhaust System Insulator for 1995-1997 Honda Accord 2.7L V6Special Price $4.11 Regular Price $5.99
- Walker Muffler Exhaust System Insulator for 1992-1996 Honda Prelude 2.2L 2.3L L4Special Price $4.11 Regular Price $5.99
- Walker Muffler Exhaust System Insulator for 1990-1994 Mitsubishi Eclipse 1.8L 2.0L L4Special Price $4.99 Regular Price $6.99
- Walker Muffler Exhaust System Insulator for 2000-2007 Ford Taurus 3.0L V6Special Price $4.99 Regular Price $6.99
- Walker Muffler Exhaust System Insulator for 2000-2005 Mercury Sable 3.0L V6Special Price $4.99 Regular Price $6.99
- Walker Muffler Exhaust System Insulator for 1990-1994 Plymouth Laser 1.8L 2.0L L4Special Price $5.26 Regular Price $7.99
- Walker Front Pipe Inlet Exhaust Pipe Flange Gasket for 1985-1988 Mitsubishi Mirage 1.6L L4Special Price $5.49 Regular Price $7.99
- Walker Front Pipe Inlet Exhaust Pipe Flange Gasket for 1984-1987 Plymouth Colt 2.0L L4Special Price $5.49 Regular Price $7.99
- Walker Muffler Exhaust System Insulator for 1993-1997 Toyota Corolla 1.6L 1.8L L4Special Price $6.56 Regular Price $8.99
- Walker Muffler Exhaust System Insulator for 1993-1997 Geo Prizm 1.6L 1.8L L4Special Price $6.56 Regular Price $8.99
- Walker Muffler Exhaust System Insulator for 1988-2009 Mercury Sable 3.5L 3.8L V6Special Price $7.76 Regular Price $10.99
- Walker Muffler Exhaust System Insulator for 1992-1994 Eagle Summit 1.8L 2.4L L4Special Price $7.76 Regular Price $10.99
- Walker Muffler Exhaust System Insulator for 2012-2015 Chevrolet Captiva Sport 2.4L L4Special Price $7.76 Regular Price $10.99