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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- 2 pc Walker Muffler Assm Exhaust System Insulators for 2003-2019 Toyota Corolla 1.8L L4Special Price $11.30 Regular Price $15.99
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- Walker Front Converter To Rear Converter Exhaust Clamp for 1993-1995 Lincoln Mark VIII 4.6L V8Special Price $4.25 Regular Price $5.99
- Walker Muffler Assm Exhaust System Insulator for 2004 Subaru Legacy 2.5L H4Special Price $4.99 Regular Price $6.99
- Walker Front Converter To Rear Converter Exhaust Pipe Flange Gasket for 1999-2001 Toyota Solara 2.2L L4Special Price $6.03 Regular Price $8.99
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- Walker Muffler Assm Exhaust System Insulator for 2009-2010 Kia Optima 2.4L L4Special Price $9.87 Regular Price $13.99
- 2 pc Walker Muffler Assm Exhaust System Insulators for 2002-2003 Mazda Protege5 2.0L L4Special Price $11.30 Regular Price $15.99
- 2 pc Walker Muffler Assm Exhaust System Insulators for 1999-2003 Dodge Dakota 2.5L 3.9L L4 V6Special Price $16.44 Regular Price $22.99
- 3 pc Walker Muffler Assm Exhaust System Insulators for 2010-2015 GMC Terrain 3.0L 3.6L V6Special Price $30.36 Regular Price $42.99
- 3 pc Walker Muffler Assm Exhaust System Insulators for 2005-2010 Kia Sportage 2.7L V6Special Price $30.36 Regular Price $42.99
- Walker Front Converter To Rear Converter Exhaust Pipe Flange Gasket for 2005-2007 Ford Focus 2.0L 2.3L L4Special Price $2.25 Regular Price $2.99
- Walker Front Converter To Rear Converter Exhaust Pipe Flange Gasket for 1999-2000 Nissan Maxima 3.0L V6Special Price $2.25 Regular Price $2.99
- Walker Front Converter To Rear Converter Exhaust Pipe Flange Gasket for 2006-2010 Mazda 5 2.3L L4Special Price $2.25 Regular Price $2.99
- Walker Front Converter To Rear Converter Exhaust Pipe Flange Gasket for 1985-1986 Nissan Maxima 3.0L V6Special Price $2.56 Regular Price $3.99
- Walker Front Converter To Rear Converter Exhaust Pipe Flange Gasket for 2006 Mercury Milan 2.3L L4Special Price $2.56 Regular Price $3.99
- Walker Front Converter To Rear Converter Exhaust Pipe Flange Gasket for 1998 Subaru Forester 2.5L H4Special Price $2.67 Regular Price $3.99
- Walker Front Converter To Rear Converter Exhaust Pipe Flange Gasket for 2005-2006 Chevrolet Malibu 3.5L V6Special Price $2.69 Regular Price $3.99
- Walker Front Converter To Rear Converter Exhaust Pipe Flange Gasket for 1995-1997 Subaru Legacy 2.2L 2.5L H4Special Price $2.69 Regular Price $3.99
- Walker Front Converter To Rear Converter Exhaust Pipe Flange Gasket for 1997-2001 Toyota Camry 3.0L V6Special Price $3.59 Regular Price $4.99
- Walker Front Converter To Rear Converter Exhaust Clamp for 1979-1987 Dodge D100 3.7L L6Special Price $4.23 Regular Price $5.99
- Walker Front Converter To Rear Converter Exhaust Clamp for 1979-1987 Dodge D150 3.7L L6Special Price $4.49 Regular Price $5.99
- Walker Front Converter To Rear Converter Exhaust Pipe Flange Gasket for 2013-2015 Subaru XV Crosstrek 2.0L H4Special Price $4.83 Regular Price $6.99
- Walker Front Converter To Rear Converter Exhaust Pipe Flange Gasket for 2013-2017 Subaru Legacy 2.5L H4Special Price $4.83 Regular Price $6.99
- Walker Front Converter To Rear Converter Exhaust Pipe Flange Gasket for 2012-2016 Subaru Impreza 2.0L H4Special Price $4.83 Regular Price $6.99
- Walker Muffler Assm Exhaust System Insulator for 2003-2006 Toyota Camry 2.4L L4Special Price $4.99 Regular Price $6.99
- Walker Muffler Assm Exhaust System Insulator for 2007-2014 Honda CR-V 2.4L L4Special Price $4.99 Regular Price $6.99
- Walker Muffler Assm Exhaust System Insulator for 2014-2019 Kia Soul 1.6L L4Special Price $4.99 Regular Price $6.99
- Walker Muffler Assm Exhaust System Insulator for 2012-2017 Hyundai Accent 1.6L L4Special Price $4.99 Regular Price $6.99
- Walker Muffler Assm Exhaust System Insulator for 1987-1990 Toyota Tercel 1.5L L4Special Price $4.99 Regular Price $6.99
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