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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- Fel-Pro Left Exhaust Pipe Flange Gasket for 2004-2014 GMC Yukon XL 1500 5.3L 6.0L 6.2L V8Special Price $6.71 Regular Price $9.99
- Fel-Pro Left Exhaust Pipe Flange Gasket for 2007-2016 Cadillac Escalade ESV 6.2L V8Special Price $6.71 Regular Price $9.99
- Fel-Pro Left Exhaust Pipe Flange Gasket for 2004 Buick Rainier 5.3L V8Special Price $6.71 Regular Price $9.99
- Fel-Pro Left Exhaust Pipe Flange Gasket for 2010-2012 Chevrolet Colorado 5.3L V8Special Price $6.71 Regular Price $9.99
- Fel-Pro Left Exhaust Pipe Flange Gasket for 2007-2013 Cadillac Escalade EXT 6.2L V8Special Price $6.71 Regular Price $9.99
- Fel-Pro Left Exhaust Pipe Flange Gasket for 2002-2016 GMC Savana 2500 4.3L 4.8L 5.3L 6.0L V6 V8Special Price $6.71 Regular Price $9.99
- Fel-Pro Left Exhaust Pipe Flange Gasket for 2007-2019 Chevrolet Silverado 2500 HD 6.0L V8Special Price $6.71 Regular Price $9.99
- Fel-Pro Left Exhaust Pipe Flange Gasket for 2006-2009 Chevrolet Trailblazer 6.0L V8Special Price $6.71 Regular Price $9.99
- Fel-Pro Left Exhaust Pipe Flange Gasket for 2002-2016 GMC Sierra 1500 4.3L 4.8L 5.3L 6.0L 6.2L V6 V8Special Price $6.71 Regular Price $9.99
- Fel-Pro Left Exhaust Pipe Flange Gasket for 2002-2014 GMC Savana 1500 4.3L 5.3L V6 V8Special Price $6.71 Regular Price $9.99
- Fel-Pro Left Exhaust Pipe Flange Gasket for 2007-2013 GMC Yukon XL 2500 6.0L V8Special Price $6.71 Regular Price $9.99
- Fel-Pro Left Exhaust Pipe Flange Gasket for 2008-2009 Saab 9-7x 6.0L V8Special Price $6.71 Regular Price $9.99
- Fel-Pro Left Exhaust Pipe Flange Gasket for 2004-2006 Chevrolet SSR 5.3L 6.0L V8Special Price $6.71 Regular Price $9.99
- Fel-Pro Left Exhaust Pipe Flange Gasket for 2015-2016 Chevrolet Suburban 5.3L 6.0L V8Special Price $6.71 Regular Price $9.99
- Fel-Pro Left Exhaust Pipe Flange Gasket for 2004 Chevrolet Trailblazer EXT 5.3L V8Special Price $6.71 Regular Price $9.99
- Fel-Pro Left Exhaust Pipe Flange Gasket for 2004 GMC Envoy XUV 5.3L V8Special Price $6.71 Regular Price $9.99
- Fel-Pro Left Exhaust Pipe Flange Gasket for 2004 GMC Envoy XL 5.3L V8Special Price $6.71 Regular Price $9.99
- Fel-Pro Left Exhaust Pipe Flange Gasket for 2007 GMC Sierra 1500 Classic 4.3L 4.8L 5.3L V6 V8Special Price $6.71 Regular Price $9.99
- Fel-Pro Left Exhaust Pipe Flange Gasket for 2004-2016 GMC Yukon 4.8L 5.3L 6.0L 6.2L V8Special Price $6.71 Regular Price $9.99
- Fel-Pro Left Exhaust Pipe Flange Gasket for 2010 Hummer H3 5.3L V8Special Price $6.71 Regular Price $9.99
- Fel-Pro Left Exhaust Pipe Flange Gasket for 2008-2015 Toyota Sequoia 5.7L V8Special Price $6.77 Regular Price $9.99
- Fel-Pro Left Exhaust Pipe Flange Gasket for 2008-2015 Lexus LX570 5.7L V8Special Price $6.77 Regular Price $9.99
- Fel-Pro Left Exhaust Pipe Flange Gasket for 2007-2015 Toyota Tundra 5.7L V8Special Price $7.08 Regular Price $9.99
- Walker Left Exhaust System Hanger for 1976-1977 GMC Jimmy 5.7L V8Special Price $10.15 Regular Price $13.99
- Walker Left Exhaust System Hanger for 1987 GMC R1500 6.2L V8Special Price $10.15 Regular Price $13.99
- Walker Left Exhaust System Hanger for 1987 Chevrolet R10 6.2L V8Special Price $10.15 Regular Price $13.99
- Walker Left Exhaust Pipe Flange Gasket for 2011-2017 Jeep Grand Cherokee 3.6L V6Special Price $10.89 Regular Price $15.99
- Walker Left Exhaust Pipe Flange Gasket for 2003-2006 GMC Savana 2500 4.8L 6.0L V8Special Price $16.89 Regular Price $23.99
- Fel-Pro Left Exhaust Pipe Flange Gasket for 2008-2014 Subaru Tribeca 3.6L H6Special Price $16.98 Regular Price $23.99
- Fel-Pro Left Exhaust Pipe Flange Gasket for 2010-2016 Subaru Outback 3.6L H6Special Price $17.50 Regular Price $24.99
- Fel-Pro Left Exhaust Pipe Flange Gasket for 2005-2015 Toyota Tacoma 4.0L V6Special Price $17.50 Regular Price $24.99
- Walker Left Exhaust Clamp for 2011-2017 Jeep Grand Cherokee 3.6L V6Special Price $20.46 Regular Price $28.99
- Walker Left Exhaust Clamp for 2009-2010 Dodge Ram 1500 5.7L V8Special Price $21.04 Regular Price $29.99