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 Muffler Right Exhaust System Insulator for 2003-2008 Pontiac Grand Prix 3.8L V6Special Price $7.76 Regular Price $10.99
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- Walker Muffler Right Exhaust System Insulator for 2009-2013 Subaru Forester 2.5L H4Special Price $5.26 Regular Price $7.99
- Walker Muffler Right Exhaust System Insulator for 2007-2012 Lincoln MKZ 3.5L V6Special Price $7.76 Regular Price $10.99
- Walker Muffler Right Exhaust System Insulator for 2019 Ford Explorer 3.5L V6Special Price $7.76 Regular Price $10.99
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- 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 Muffler Right Exhaust System Insulator for 1992-1995 Ford Taurus 3.8L 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 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 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 Muffler Right Exhaust System Hanger for 1990-1991 GMC K3500 6.2L V8Special Price $9.78 Regular Price $13.99
- Walker Muffler Right Exhaust System Hanger for 1990-1991 Chevrolet V3500 6.2L V8Special Price $9.78 Regular Price $13.99
- 2 pc Walker Muffler Right Exhaust System Insulators for 2009-2013 Subaru Forester 2.5L H4Special Price $11.30 Regular Price $15.99
- 2 pc Walker Muffler Right Exhaust System Insulators for 2008-2010 Subaru Impreza 2.5L H4Special Price $11.30 Regular Price $15.99
- 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 2005-2010 Honda Odyssey 3.5L V6Special Price $15.18 Regular Price $21.99
- 2 pc Walker Muffler Right Exhaust System Insulators for 1997-2002 Pontiac Grand Prix 3.8L V6Special Price $16.44 Regular Price $22.99
- 2 pc Walker Muffler Right Exhaust System Insulators for 2000-2005 Chevrolet Monte Carlo 3.8L V6Special Price $16.95 Regular Price $23.99
- 2 pc Walker Muffler Right Exhaust System Insulators for 2006-2011 Chevrolet Impala 3.9L 5.3L V6 V8Special Price $16.95 Regular Price $23.99
- 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 Muffler Right Exhaust System Insulators for 1991-1992 Chevrolet Lumina 3.4L V6Special Price $20.51 Regular Price $28.99
- 3 pc Walker Muffler Right Exhaust System Insulators for 2009-2010 Dodge Journey 3.5L V6Special Price $25.80 Regular Price $36.99