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 Front Pipe To Converter Exhaust Pipe Flange Gasket for 2011-2012 Lincoln MKZ 2.5L L4Special 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 Front Pipe To Converter Exhaust Pipe Flange Gasket for 2010-2011 Mercury Milan 2.5L L4Special Price $2.25 Regular Price $2.99
- Walker Front Pipe To Converter Exhaust Pipe Flange Gasket for 1995 Nissan Pickup 2.4L L4Special Price $2.25 Regular Price $2.99
- Walker Front Pipe To Converter Exhaust Pipe Flange Gasket for 2010-2012 Ford Fusion 2.5L L4Special Price $2.25 Regular Price $2.99
- Walker Front Pipe To Converter Exhaust Pipe Flange Gasket for 1990-1992 Infiniti M30 3.0L V6Special Price $2.25 Regular Price $2.99
- Walker Front Pipe To Converter Exhaust Pipe Flange Gasket for 2004-2008 Acura TSX 2.4L L4Special Price $2.26 Regular Price $2.99
- Walker Front Pipe To Converter Exhaust Pipe Flange Gasket for 2001-2005 Subaru Outback 2.5L H4Special Price $2.67 Regular Price $3.99
- Walker Front Pipe To Converter Exhaust Clamp for 1991 GMC Sonoma 2.5L L4Special Price $4.25 Regular Price $5.99