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 2001-2005 Subaru Outback 2.5L H4Special Price $2.67 Regular Price $3.99
- Walker Front Pipe To Converter Exhaust Pipe Flange Gasket for 2014-2015 Honda Civic 1.8L L4Special Price $3.08 Regular Price $3.99
- Walker Front Pipe To Converter Exhaust Pipe Flange Gasket for 1999-2004 Honda Odyssey 3.5L V6Special Price $3.79 Regular Price $4.99
- Walker Left Exhaust Clamp for 1982-1986 Chevrolet C20 6.2L V8Special Price $3.99 Regular Price $5.99
- Walker Front Pipe To Converter Exhaust Pipe Flange Gasket for 1987-1992 Mitsubishi Mirage 1.5L L4Special Price $5.49 Regular Price $7.99
- Walker Front Pipe To Converter Exhaust Pipe Flange Gasket for 1990-1993 Hyundai Excel 1.5L L4Special Price $5.92 Regular Price $7.99
- Fel-Pro Left Exhaust Pipe Flange Gasket for 1999-2003 Chevrolet Express 1500 4.3L 5.3L V6 V8Special Price $6.01 Regular Price $8.99
- Fel-Pro Left Exhaust Pipe Flange Gasket for 1999-2000 GMC Sierra 2500 5.3L V8Special Price $6.01 Regular Price $8.99
- Walker Front Pipe To Converter Exhaust Pipe Flange Gasket for 1989-1992 Ford Probe 2.2L L4Special Price $6.24 Regular Price $8.99
- Fel-Pro Left Exhaust Pipe Flange Gasket for 1999-2003 Chevrolet Express 2500 4.3L 4.8L 5.3L V6 V8Special Price $6.30 Regular Price $8.99
- Fel-Pro Left Exhaust Pipe Flange Gasket for 2003-2006 Chevrolet Trailblazer EXT 5.3L V8Special Price $6.30 Regular Price $8.99
- Fel-Pro Left Exhaust Pipe Flange Gasket for 2002-2014 Chevrolet Express 1500 4.3L 5.3L V6 V8Special Price $6.41 Regular Price $8.99
- Fel-Pro Left Exhaust Pipe Flange Gasket for 2004-2006 Chevrolet Avalanche 1500 5.3L V8Special Price $6.41 Regular Price $8.99
- Fel-Pro Left Exhaust Pipe Flange Gasket for 2010-2012 Chevrolet Colorado 5.3L V8Special Price $6.71 Regular Price $9.99
- Walker Front Pipe To Converter Exhaust Bolt & Spring for 1993-1995 Honda Civic del Sol 1.5L 1.6L L4Special Price $12.75 Regular Price $17.99
- Walker Front Pipe To Converter Exhaust Pipe Flange Gasket for 2012-2013 Chevrolet Impala 3.6L V6Special Price $13.52 Regular Price $18.99
- Fel-Pro Left Exhaust Pipe Flange Gasket for 2010-2016 Subaru Outback 3.6L H6Special Price $17.50 Regular Price $24.99