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 Muffler Assm Left Exhaust System Insulator for 1990-1993 Lexus LS400 4.0L V8Special Price $8.09 Regular Price $11.99
- 2 pc Walker Muffler Assm Left Exhaust System Insulators for 1990-1995 Nissan 300ZX 3.0L V6Special Price $10.91 Regular Price $15.99
- Walker Converter Inlet Exhaust Pipe Flange Gasket for 2000-2004 Ford Focus 2.0L L4Special Price $10.95 Regular Price $15.99
- 2 pc Walker Muffler Assm Left Exhaust System Insulators for 1989-1990 Daihatsu Charade 1.3L L4Special Price $11.30 Regular Price $15.99
- 2 pc Walker Converter Inlet Exhaust Pipe Flange Gaskets for 1993-1995 GMC C1500 4.3L 5.0L 5.7L V6 V8Special Price $32.66 Regular Price $46.99
- 2 pc Walker Converter Inlet Exhaust Pipe Flange Gaskets for 1993-1995 GMC K1500 4.3L 5.0L 5.7L V6 V8Special Price $32.66 Regular Price $46.99
- 2 pc Walker Converter Inlet Exhaust Pipe Flange Gaskets for 1994-1995 Chevrolet K1500 Suburban 5.7L V8Special Price $32.66 Regular Price $46.99
- 2 pc Walker Converter Inlet Exhaust Pipe Flange Gaskets for 1994-1995 Chevrolet K2500 4.3L 5.0L 5.7L V6 V8Special Price $32.66 Regular Price $46.99
- 2 pc Walker Converter Inlet Exhaust Pipe Flange Gaskets for 1994-1995 GMC Yukon 5.7L V8Special Price $32.66 Regular Price $46.99
- 2 pc Walker Converter Inlet Exhaust Pipe Flange Gaskets for 1994-1995 GMC C1500 Suburban 5.7L V8Special Price $32.66 Regular Price $46.99
- Walker Muffler Assm Left Exhaust System Insulator for 1994 Lexus LS400 4.0L V8Special Price $4.99 Regular Price $6.99
- Walker Muffler Assm Left Exhaust System Insulator for 2005 Subaru Legacy 2.5L H4Special Price $5.26 Regular Price $7.99
- Walker Muffler Assm Left Exhaust System Insulator for 2008-2012 Honda Accord 3.5L V6Special Price $5.26 Regular Price $7.99
- Walker Converter Inlet Exhaust Pipe Flange Gasket for 1983 Mercury Marquis 2.3L L4Special Price $5.91 Regular Price $7.99
- 2 pc Walker Converter Inlet Exhaust Pipe Flange Gaskets for 1991-1995 Toyota Previa 2.4L L4Special Price $6.20 Regular Price $8.99
- 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 2001-2010 Chrysler PT Cruiser 2.4L L4Special Price $7.71 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 Muffler Assm Left Exhaust System Insulator for 2006-2008 Hyundai Sonata 3.3L V6Special Price $7.76 Regular Price $10.99
- Walker Muffler Assm Left Exhaust System Insulator for 2009-2013 Infiniti G37 3.7L V6Special Price $7.76 Regular Price $10.99
- Walker Muffler Assm Left Exhaust System Insulator for 2006-2010 Hyundai Azera 3.3L 3.8L V6Special Price $7.76 Regular Price $10.99
- Walker Muffler Assm Left Exhaust System Insulator for 2003-2007 Honda Accord 3.0L V6Special Price $7.76 Regular Price $10.99
- Walker Muffler Assm Left Exhaust System Insulator for 2011-2018 Ford Explorer 3.5L V6Special Price $7.76 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 2007-2017 Jeep Patriot 2.0L 2.4L L4Special 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 2000 Chrysler Grand Voyager 3.3L V6Special Price $8.04 Regular Price $10.99
- Walker Muffler Assm Left Exhaust System Insulator for 2004-2008 Acura TSX 2.4L L4Special Price $8.09 Regular Price $11.99
- Walker Muffler Assm Left Exhaust System Insulator for 2006 Lincoln Zephyr 3.0L V6Special Price $8.09 Regular Price $11.99
- Walker Muffler Assm Left Exhaust System Insulator for 2007-2008 Infiniti G35 3.5L V6Special Price $8.09 Regular Price $11.99
- Walker Muffler Assm Left Exhaust System Insulator for 1990-1995 Nissan 300ZX 3.0L V6Special Price $8.09 Regular Price $11.99
- Walker Muffler Assm Left Exhaust System Insulator for 2006-2011 Mercury Milan 3.0L V6Special Price $8.09 Regular Price $11.99
- Walker Muffler Assm Left Exhaust System Insulator for 2006-2016 Kia Optima 2.0L 2.4L 2.7L L4 V6Special 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