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 Left Exhaust Pipe Flange Gasket for 2008-2011 Cadillac STS 3.6L V6Special Price $5.92 Regular Price $7.99
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- Walker Front Pipe To Converter Exhaust Pipe Flange Gasket for 2011-2012 Lincoln MKZ 2.5L L4Special Price $2.25 Regular Price $2.99
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- Walker Exhaust Pipe Flange Gasket for 1991-2002 Infiniti G20 2.0L L4Special Price $2.25 Regular Price $2.99
- Walker Converter Rear Right To Muffler Assm Exhaust Pipe Flange Gasket for 2005-2015 Nissan Xterra 4.0L V6Special Price $2.25 Regular Price $2.99
- Walker Exhaust Pipe Flange Gasket for 2014-2017 Ram ProMaster 3500 3.6L V6Special Price $2.25 Regular Price $2.99
- Walker Front Pipe To Converter Exhaust Pipe Flange Gasket for 1990-1994 Nissan D21 2.4L L4Special Price $2.25 Regular Price $2.99
- Walker Exhaust Pipe Flange Gasket for 2014-2018 Nissan Rogue 2.5L L4Special Price $2.25 Regular Price $2.99
- 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 Exhaust Pipe Flange Gasket for 1999-2006 Volvo S80 2.5L 2.8L 2.9L L5 L6Special Price $2.25 Regular Price $2.99
- Walker Exhaust Pipe Flange Gasket for 2015-2019 Ram ProMaster City 2.4L L4Special Price $2.56 Regular Price $3.99