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 Extension Pipe To Muffler Exhaust Clamp for 1999-2004 GMC Sierra 2500 6.0L V8Special Price $4.23 Regular Price $5.99
- Walker Extension Pipe To Muffler Exhaust Clamp for 2007-2012 Chevrolet Colorado 2.9L 3.7L L4 L5Special Price $4.49 Regular Price $5.99
- Walker Left Converter To Front Pipe Exhaust Pipe Flange Gasket for 2008-2012 Honda Accord 3.5L V6Special Price $2.56 Regular Price $3.99
- Walker Left Converter To Front Pipe Exhaust Pipe Flange Gasket for 2003-2004 Lexus GX470 4.7L V8Special Price $3.35 Regular Price $4.99
- Walker Left Converter To Front Pipe Exhaust Pipe Flange Gasket for 2003-2004 Toyota 4Runner 4.7L V8Special Price $3.35 Regular Price $4.99
- Walker Left Converter To Front Pipe Exhaust Pipe Flange Gasket for 2010-2015 Lexus RX350 3.5L V6Special Price $3.35 Regular Price $4.99
- Walker Left Converter To Front Pipe Exhaust Pipe Flange Gasket for 2004-2016 Toyota Highlander 3.3L 3.5L V6Special Price $3.35 Regular Price $4.99
- Walker Left Converter To Front Pipe Exhaust Pipe Flange Gasket for 2006-2008 Lexus RX400h 3.3L V6Special Price $3.59 Regular Price $4.99
- Walker Left Converter To Front Pipe Exhaust Pipe Flange Gasket for 2009-2015 Toyota Venza 3.5L V6Special Price $3.59 Regular Price $4.99
- Walker Left Converter To Front Pipe Exhaust Pipe Flange Gasket for 2004-2016 Toyota Sienna 3.3L 3.5L V6Special Price $3.59 Regular Price $4.99
- Walker Left Converter To Front Pipe Exhaust Pipe Flange Gasket for 2006-2012 Toyota RAV4 3.5L V6Special Price $3.59 Regular Price $4.99
- Walker Extension Pipe To Muffler Exhaust Clamp for 1967 Chevrolet K10 Pickup 4.6L V8Special Price $3.71 Regular Price $4.99
- Walker Extension Pipe To Muffler Exhaust Clamp for 1993 Asuna Sunfire 1.8L L4Special Price $3.71 Regular Price $4.99
- Walker Extension Pipe To Muffler Exhaust Clamp for 1968 GMC P35 P3500 Van 5.0L V8Special Price $3.71 Regular Price $4.99
- Walker Extension Pipe To Muffler Exhaust Clamp for 1990-1993 Hyundai Sonata 3.0L V6Special Price $3.71 Regular Price $4.99
- Walker Extension Pipe To Muffler Exhaust Clamp for 1989-1993 Ford Thunderbird 3.8L V6Special Price $3.96 Regular Price $5.99
- Walker Extension Pipe To Muffler Exhaust Clamp for 1987-1991 Dodge Daytona 2.2L 3.0L L4 V6Special Price $3.96 Regular Price $5.99
- Walker Extension Pipe To Muffler Exhaust Clamp for 2004-2011 Ford Ranger 2.3L 3.0L 4.0L L4 V6Special Price $3.96 Regular Price $5.99
- Walker Extension Pipe To Muffler Exhaust Clamp for 2003-2013 Toyota Matrix 1.8L L4Special Price $3.96 Regular Price $5.99
- Walker Extension Pipe To Muffler Exhaust Clamp for 1987-1988 Dodge Shadow 2.2L L4Special Price $3.96 Regular Price $5.99
- Walker Extension Pipe To Muffler Exhaust Clamp for 1987-1991 Volkswagen Jetta 1.8L 2.0L L4Special Price $3.96 Regular Price $5.99
- Walker Extension Pipe To Muffler Exhaust Clamp for 1968 Chevrolet P30 Van 5.0L V8Special Price $3.96 Regular Price $5.99