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 Y-Pipe To Converter Rear Exhaust Pipe Flange Gasket for 2009-2017 Chevrolet Traverse 3.6L V6Special Price $13.08 Regular Price $18.99
- Walker Y-Pipe To Converter Rear Exhaust Pipe Flange Gasket for 2002-2004 Infiniti I35 3.5L V6Special Price $2.25 Regular Price $2.99
- Walker Y-Pipe To Converter Rear Exhaust Pipe Flange Gasket for 2006-2010 Kia Sedona 3.8L V6Special Price $2.56 Regular Price $3.99
- Walker Int Pipe Rear Exhaust System Insulator for 1999-2004 Chrysler 300M 3.5L V6Special Price $7.76 Regular Price $10.99
- Walker Y-Pipe To Converter Rear Exhaust Pipe Flange Gasket for 2001-2007 Ford Escape 3.0L V6Special Price $7.99 Regular Price $10.99
- Walker Int Pipe Rear Exhaust System Insulator for 2009-2010 Dodge Journey 3.5L V6Special Price $8.09 Regular Price $11.99
- Walker Int Pipe Rear Exhaust System Insulator for 2009 Ford Flex 3.5L V6Special Price $8.09 Regular Price $11.99
- Walker Int Pipe Rear Exhaust System Insulator for 2000-2004 Dodge Intrepid 3.5L V6Special Price $8.09 Regular Price $11.99
- Walker Y-Pipe To Converter Rear Exhaust Pipe Flange Gasket for 2005-2007 Mercury Mariner 3.0L V6Special Price $8.32 Regular Price $11.99
- Walker Y-Pipe To Converter Rear Exhaust Pipe Flange Gasket for 2007-2009 Lexus RX350 3.5L V6Special Price $9.35 Regular Price $12.99
- Walker Int Pipe Rear Exhaust System Insulator for 1999-2000 GMC C2500 6.5L V8Special Price $9.51 Regular Price $13.99
- Walker Y-Pipe To Converter Rear Exhaust Pipe Flange Gasket for 2006-2012 Toyota RAV4 3.5L V6Special Price $9.71 Regular Price $13.99
- Walker Y-Pipe To Converter Rear Exhaust Pipe Flange Gasket for 2004-2006 Lexus RX330 3.3L V6Special Price $9.71 Regular Price $13.99
- Walker Int Pipe Rear Exhaust System Hanger for 1982-1987 GMC P2500 5.7L V8Special Price $9.78 Regular Price $13.99
- Walker Int Pipe Rear Exhaust System Hanger for 1982-1987 Chevrolet P30 5.7L V8Special Price $9.78 Regular Price $13.99
- Walker Int Pipe Rear Exhaust System Insulator for 1992-1996 Chevrolet G30 5.7L V8Special Price $9.87 Regular Price $13.99
- Walker Int Pipe Rear Exhaust System Insulator for 1992-1996 GMC G3500 5.7L V8Special Price $9.87 Regular Price $13.99
- Walker Int Pipe Rear Exhaust System Insulator for 1999-2000 GMC K2500 6.5L V8Special Price $9.87 Regular Price $13.99
- Walker Int Pipe Rear Exhaust System Insulator for 1999-2000 Chevrolet K2500 6.5L V8Special Price $9.87 Regular Price $13.99
- Walker Int Pipe Rear Exhaust System Insulator for 1999-2000 Chevrolet C2500 6.5L V8Special Price $9.87 Regular Price $13.99
- Walker Int Pipe Rear Exhaust System Hanger for 1982-1987 GMC P3500 5.7L V8Special Price $10.15 Regular Price $13.99
- Walker Y-Pipe To Converter Rear Exhaust Pipe Flange Gasket for 2005-2010 Honda Odyssey 3.5L V6Special Price $15.18 Regular Price $21.99
- Walker Y-Pipe To Converter Rear Exhaust Pipe Flange Gasket for 2010-2015 Lexus RX350 3.5L V6Special Price $18.68 Regular Price $26.99
- Walker Y-Pipe To Converter Rear Exhaust Bolt & Spring for 2007-2015 Lexus RX350 3.5L V6Special Price $19.44 Regular Price $27.99
- Walker Y-Pipe To Converter Rear Exhaust Bolt & Spring for 2006-2012 Toyota RAV4 3.5L V6Special Price $20.00 Regular Price $28.99
- Walker Y-Pipe To Converter Rear Exhaust Bolt & Spring for 2006-2008 Lexus RX400h 3.3L V6Special Price $20.00 Regular Price $28.99
- 2 pc Walker Int Pipe Rear Exhaust System Insulators for 1996-1997 GMC C1500 6.5L V8Special Price $20.51 Regular Price $28.99
- 2 pc Walker Int Pipe Rear Exhaust System Insulators for 1996-1998 Chevrolet C1500 6.5L V8Special Price $20.51 Regular Price $28.99