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 Connector Left To Muffler Left Exhaust Clamp for 1989-1991 Chevrolet V3500 6.2L V8Special Price $4.49 Regular Price $5.99
- Walker Connector Left To Muffler Left Exhaust Clamp for 1988 Chevrolet V30 6.2L V8Special Price $4.49 Regular Price $5.99
- Walker Connector Left To Muffler Left Exhaust Clamp for 1990-1991 GMC K3500 6.2L V8Special Price $4.49 Regular Price $5.99
- Walker Converter Left To Muffler Exhaust Clamp for 2003-2010 Chevrolet Express 3500 4.8L 6.0L V8Special Price $7.12 Regular Price $9.99
- Walker Converter Left To Muffler Exhaust Pipe Flange Gasket for 1996-2000 GMC Savana 3500 5.7L 7.4L V8Special Price $12.78 Regular Price $17.99
- Walker Converter Left To Muffler Exhaust Pipe Flange Gasket for 1996-2000 GMC Savana 2500 5.7L V8Special Price $13.21 Regular Price $18.99
- Walker Converter Left To Muffler Exhaust Pipe Flange Gasket for 1996-1999 GMC Savana 1500 5.7L V8Special Price $13.21 Regular Price $18.99
- Walker Converter Left To Muffler Exhaust Pipe Flange Gasket for 1996-2000 Chevrolet Express 3500 5.7L 7.4L V8Special Price $13.21 Regular Price $18.99