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.
Filter By Part Details
- Walker Tail Pipe Left Exhaust System Insulator for 2011-2018 Ram 1500 5.7L V8Special Price $8.09 Regular Price $11.99
- Walker Converter Right Exhaust System Insulator for 2007 GMC Sierra 3500 Classic 6.0L 8.1L V8Special Price $9.51 Regular Price $13.99
- Walker Converter Right Exhaust System Insulator for 2004-2006 Chevrolet Silverado 3500 6.0L 8.1L V8Special Price $9.51 Regular Price $13.99
- Walker Tail Pipe Left Exhaust System Hanger for 1982-1988 GMC P3500 5.7L 6.2L V8Special Price $9.78 Regular Price $13.99
- Walker Tail Pipe Left Exhaust System Insulator for 1998-1999 Chevrolet Camaro 5.7L V8Special Price $7.76 Regular Price $10.99
- Walker Tail Pipe Left Exhaust System Insulator for 2009-2010 Dodge Ram 1500 5.7L V8Special Price $8.09 Regular Price $11.99
- Walker Converter Right Exhaust System Insulator for 2001-2006 GMC Sierra 2500 HD 6.0L 8.1L V8Special Price $9.51 Regular Price $13.99
- Walker Converter Right Exhaust System Insulator for 1999-2004 GMC Sierra 2500 6.0L V8Special Price $9.51 Regular Price $13.99
- Walker Converter Right Exhaust System Insulator for 2006-2009 Chevrolet Express 3500 4.8L 6.0L V8Special Price $9.51 Regular Price $13.99
- Walker Converter Right Exhaust System Insulator for 1999-2004 Chevrolet Silverado 2500 6.0L V8Special Price $9.51 Regular Price $13.99
- Walker Converter Right Exhaust System Insulator for 2002-2006 GMC Sierra 1500 HD 6.0L V8Special Price $9.51 Regular Price $13.99
- Walker Converter Right Exhaust System Insulator for 1996-2000 Chevrolet K2500 5.7L 7.4L V8Special Price $9.51 Regular Price $13.99
- Walker Tail Pipe Left Exhaust System Hanger for 1975-1978 GMC C35 7.4L V8Special Price $9.78 Regular Price $13.99
- Walker Converter Right Exhaust System Insulator for 1996-2000 GMC K2500 5.7L 7.4L V8Special Price $9.87 Regular Price $13.99
- Walker Converter Right Exhaust System Insulator for 2004-2006 GMC Sierra 3500 6.0L 8.1L V8Special Price $9.87 Regular Price $13.99
- Walker Converter Right Exhaust System Insulator for 1996-2000 Chevrolet C2500 5.7L 7.4L V8Special Price $9.87 Regular Price $13.99
- Walker Converter Right Exhaust System Insulator for 1996-2000 GMC C2500 5.7L 7.4L V8Special Price $9.87 Regular Price $13.99
- Walker Converter Right Exhaust System Insulator for 2006-2009 GMC Savana 3500 4.8L 6.0L V8Special Price $9.87 Regular Price $13.99
- Walker Tail Pipe Left Exhaust System Hanger for 1975-1985 Chevrolet C30 7.4L V8Special Price $10.15 Regular Price $13.99