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 Converter Inlet Left Exhaust Pipe Flange Gasket for 1996 Nissan 300ZX 3.0L V6Special Price $3.31 Regular Price $4.99
- Walker Converter Inlet Left Exhaust Pipe Flange Gasket for 2000-2006 Toyota Tundra 4.7L V8Special Price $3.35 Regular Price $4.99
- Walker Int Pipe Left To Muffler Exhaust Clamp for 1996-2000 Chevrolet C3500 5.7L 7.4L V8Special Price $4.23 Regular Price $5.99
- Walker Int Pipe Left To Muffler Exhaust Clamp for 2001-2006 GMC Yukon 6.0L V8Special Price $4.23 Regular Price $5.99
- Walker Int Pipe Left To Muffler Exhaust Clamp for 1996-2000 GMC C2500 5.7L 7.4L V8Special Price $4.23 Regular Price $5.99
- Walker Int Pipe Left To Muffler Exhaust Clamp for 1996-2000 Chevrolet K2500 5.7L 7.4L V8Special Price $4.23 Regular Price $5.99
- Walker Int Pipe Left To Muffler Exhaust Clamp for 1996-2000 Chevrolet K3500 5.7L 7.4L V8Special Price $4.23 Regular Price $5.99
- Walker Int Pipe Left To Muffler Exhaust Clamp for 1996-2000 GMC K3500 5.7L 7.4L V8Special Price $4.49 Regular Price $5.99
- Walker Int Pipe Left To Muffler Exhaust Clamp for 1996-2000 Chevrolet C2500 5.7L 7.4L V8Special Price $4.49 Regular Price $5.99
- Walker Converter Inlet Left Exhaust Pipe Flange Gasket for 2007-2017 Toyota Tundra 4.0L 4.6L 4.7L 5.7L V6 V8Special Price $6.32 Regular Price $8.99
- Walker Converter Inlet Left Exhaust Pipe Flange Gasket for 2004-2006 Chevrolet Malibu 3.5L V6Special Price $6.52 Regular Price $8.99
- 2 pc Walker Converter Inlet Left Exhaust Pipe Flange Gaskets for 1997-1998 Lexus ES300 3.0L V6Special Price $7.96 Regular Price $10.99
- Walker Converter Inlet Left Exhaust Pipe Flange Gasket for 2002-2005 Chevrolet Avalanche 1500 5.3L V8Special Price $16.39 Regular Price $22.99
- Walker Converter Inlet Left Exhaust Pipe Flange Gasket for 2000-2014 GMC Yukon 4.8L 5.3L 6.0L 6.2L V8Special Price $16.39 Regular Price $22.99
- Walker Converter Inlet Left Exhaust Pipe Flange Gasket for 2004-2006 GMC Sierra 3500 6.0L 8.1L V8Special Price $16.39 Regular Price $22.99
- Walker Converter Inlet Left Exhaust Pipe Flange Gasket for 2003-2006 Cadillac Escalade ESV 6.0L V8Special Price $16.39 Regular Price $22.99
- Walker Converter Inlet Left Exhaust Pipe Flange Gasket for 2000-2014 GMC Yukon XL 1500 5.3L 6.0L 6.2L V8Special Price $16.39 Regular Price $22.99
- Walker Converter Inlet Left Exhaust Pipe Flange Gasket for 2007-2013 Chevrolet Avalanche 5.3L 6.0L V8Special Price $16.39 Regular Price $22.99
- Walker Converter Inlet Left Exhaust Pipe Flange Gasket for 2003-2014 GMC Savana 1500 4.3L 5.3L V6 V8Special Price $16.39 Regular Price $22.99
- Walker Converter Inlet Left Exhaust Pipe Flange Gasket for 2007-2017 Chevrolet Silverado 3500 HD 6.0L V8Special Price $16.39 Regular Price $22.99
- Walker Converter Inlet Left Exhaust Pipe Flange Gasket for 2002-2006 Chevrolet Silverado 1500 HD 6.0L V8Special Price $16.89 Regular Price $23.99
- Walker Converter Inlet Left Exhaust Pipe Flange Gasket for 2007-2017 GMC Sierra 3500 HD 6.0L V8Special Price $16.89 Regular Price $23.99
- Walker Converter Inlet Left Exhaust Pipe Flange Gasket for 2007 GMC Sierra 2500 HD Classic 6.0L 8.1L V8Special Price $16.89 Regular Price $23.99
- Walker Converter Inlet Left Exhaust Pipe Flange Gasket for 2007 Chevrolet Silverado 1500 Classic 4.3L 4.8L 5.3L V6 V8Special Price $16.89 Regular Price $23.99
- Walker Converter Inlet Left Exhaust Pipe Flange Gasket for 2002-2006 Cadillac Escalade EXT 6.0L V8Special Price $16.89 Regular Price $23.99
- Walker Converter Inlet Left Exhaust Pipe Flange Gasket for 2007 Chevrolet Silverado 2500 HD Classic 6.0L 8.1L V8Special Price $16.39 Regular Price $16.89
- Walker Converter Inlet Left Exhaust Pipe Flange Gasket for 2003-2014 Chevrolet Express 1500 4.3L 5.3L V6 V8Special Price $16.89 Regular Price $23.99
- Walker Converter Inlet Left Exhaust Pipe Flange Gasket for 2007 GMC Sierra 3500 Classic 6.0L 8.1L V8Special Price $16.89 Regular Price $23.99
- Walker Converter Inlet Left Exhaust Pipe Flange Gasket for 1999-2004 Chevrolet Silverado 2500 6.0L V8Special Price $16.89 Regular Price $23.99