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 Converter Inlet Exhaust Bolt & Spring for 2003-2019 Toyota Corolla 1.8L L4Special Price $19.44 Regular Price $27.99
- Walker Int Pipe Left Exhaust System Insulator for 1996-2000 GMC C2500 5.7L 7.4L V8Special Price $9.51 Regular Price $13.99
- Walker Int Pipe Left Exhaust System Insulator for 1996-2000 Chevrolet K2500 5.7L 7.4L V8Special Price $9.87 Regular Price $13.99
- Walker Converter Inlet Exhaust Pipe Flange Gasket for 2002-2004 Oldsmobile Silhouette 3.4L V6Special Price $15.18 Regular Price $21.99
- Walker Converter Inlet Exhaust Pipe Flange Gasket for 1983 Mercury Marquis 2.3L L4Special Price $5.91 Regular Price $7.99
- Walker Converter Inlet Exhaust Pipe Flange Gasket for 1984-1985 Mercedes-Benz 500SEL 5.0L V8Special Price $7.44 Regular Price $10.99
- Walker Converter Inlet Exhaust Pipe Flange Gasket for 1984-1985 Mercedes-Benz 500SEC 5.0L V8Special Price $7.44 Regular Price $10.99
- Walker Converter Inlet Exhaust Pipe Flange Gasket for 1996-2000 Plymouth Voyager 3.3L 3.8L V6Special Price $7.71 Regular Price $10.99
- Walker Converter Inlet Exhaust Pipe Flange Gasket for 2001-2010 Chrysler PT Cruiser 2.4L L4Special Price $7.71 Regular Price $10.99
- 2 pc Walker Converter Inlet Exhaust Pipe Flange Gaskets for 1996-2000 Toyota 4Runner 2.7L L4Special Price $7.96 Regular Price $10.99
- Walker Converter Inlet Exhaust Pipe Flange Gasket for 1996-2010 Chrysler Town & Country 3.3L 3.8L V6Special Price $8.04 Regular Price $10.99
- Walker Converter Inlet Exhaust Pipe Flange Gasket for 2000 Chrysler Grand Voyager 3.3L V6Special Price $8.04 Regular Price $10.99
- Walker Converter Inlet Exhaust Pipe Flange Gasket for 1996-2000 Plymouth Grand Voyager 3.3L 3.8L V6Special Price $8.04 Regular Price $10.99
- Walker Converter Inlet Exhaust Pipe Flange Gasket for 2007-2017 Jeep Patriot 2.0L 2.4L L4Special Price $8.04 Regular Price $10.99
- Walker Int Pipe Left Exhaust System Insulator for 1996-2000 Chevrolet C2500 5.7L 7.4L V8Special Price $9.51 Regular Price $13.99
- Walker Int Pipe Left Exhaust System Insulator for 1996-2000 GMC C3500 5.7L 7.4L V8Special Price $9.51 Regular Price $13.99
- Walker Int Pipe Left Exhaust System Insulator for 1996-2000 Chevrolet C3500 5.7L 7.4L V8Special Price $9.51 Regular Price $13.99
- Walker Converter Inlet Exhaust Pipe Flange Gasket for 2003-2008 Toyota Corolla 1.8L L4Special Price $9.71 Regular Price $13.99
- Walker Int Pipe Left Exhaust System Hanger for 1979-1988 GMC P3500 6.2L 7.4L V8Special Price $9.78 Regular Price $13.99
- Walker Int Pipe Left Exhaust System Hanger for 1975-1988 Chevrolet P30 6.2L 7.4L V8Special Price $9.78 Regular Price $13.99
- Walker Int Pipe Left Exhaust System Insulator for 1996-2000 Chevrolet K3500 5.7L 7.4L V8Special Price $9.87 Regular Price $13.99
- Walker Converter Inlet Exhaust Pipe Flange Gasket for 2004-2006 Scion xA 1.5L L4Special Price $10.15 Regular Price $13.99
- Walker Converter Inlet Exhaust Pipe Flange Gasket for 2004-2006 Scion xB 1.5L L4Special Price $10.52 Regular Price $14.99
- Walker Converter Inlet Exhaust Pipe Flange Gasket for 2000-2004 Ford Focus 2.0L L4Special Price $10.95 Regular Price $15.99
- Walker Converter Inlet Exhaust Pipe Flange Gasket for 2003-2011 Honda Element 2.4L L4Special Price $11.82 Regular Price $16.99
- Walker Converter Inlet Exhaust Pipe Flange Gasket for 2002-2006 Acura RSX 2.0L L4Special Price $12.23 Regular Price $16.99
- Walker Converter Inlet Exhaust Bolt & Spring for 2003-2011 Honda Element 2.4L L4Special Price $12.32 Regular Price $17.99
- Walker Converter Inlet Exhaust Bolt & Spring for 2002-2009 Honda CR-V 2.4L L4Special Price $12.32 Regular Price $17.99
- Walker Converter Inlet Exhaust Bolt & Spring for 2000-2005 Honda S2000 2.0L 2.2L L4Special Price $12.32 Regular Price $17.99
- Walker Converter Inlet Exhaust Bolt & Spring for 1994 Chevrolet Corsica 3.1L V6Special Price $14.64 Regular Price $20.99