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 Y-Pipe To Int Pipe Exhaust Clamp for 1979-1981 GMC P2500 5.7L V8Special Price $4.49 Regular Price $5.99
- Walker Tail Pipe Exhaust System Insulator for 2006-2008 Dodge Ram 1500 5.7L V8Special Price $8.09 Regular Price $11.99
- Walker Tail Pipe Exhaust System Insulator for 2004-2006 Mazda B3000 3.0L V6Special Price $8.09 Regular Price $11.99
- Walker Tail Pipe Exhaust System Insulator for 2007-2010 Chevrolet Silverado 3500 HD 6.0L V8Special Price $9.51 Regular Price $13.99
- 2 pc Walker Y-Pipe To Int Pipe Exhaust Clamps for 1989-1993 Chevrolet C2500 6.2L V8Special Price $18.56 Regular Price $26.99
- 2 pc Walker Tail Pipe Exhaust System Insulators for 2003-2009 GMC Savana 2500 4.8L 6.0L V8Special Price $19.94 Regular Price $27.99
- 2 pc Walker Tail Pipe Exhaust System Hangers for 1987-1988 Chevrolet R10 Suburban 6.2L V8Special Price $20.48 Regular Price $28.99
- 2 pc Walker Tail Pipe Exhaust System Insulators for 2007-2012 Chevrolet Colorado 2.9L 3.7L L4 L5Special Price $20.51 Regular Price $28.99
- 2 pc Walker Tail Pipe Exhaust System Insulators for 2000-2007 GMC Yukon XL 1500 5.3L 6.0L V8Special Price $20.51 Regular Price $28.99
- Walker Y-Pipe To Int Pipe Exhaust Clamp for 1965-1966 Ford Mustang 4.7L V8Special Price $3.71 Regular Price $4.99
- Walker Y-Pipe To Int Pipe Exhaust Clamp for 1967 Chevrolet C30 Pickup 4.6L V8Special Price $3.96 Regular Price $5.99
- Walker Y-Pipe To Int Pipe Exhaust Clamp for 1967-1968 GMC C25 C2500 Pickup 4.6L 5.0L V8Special Price $3.96 Regular Price $5.99
- Walker Y-Pipe To Int Pipe Exhaust Clamp for 1981-1982 Ford F-350 5.8L 6.6L V8Special Price $3.99 Regular Price $5.99
- Walker Y-Pipe To Int Pipe Exhaust Clamp for 1975-1978 GMC P25 5.7L V8Special Price $4.23 Regular Price $5.99
- Walker Y-Pipe To Int Pipe Exhaust Clamp for 1973-1974 Cadillac Fleetwood 7.7L V8Special Price $4.23 Regular Price $5.99
- Walker Y-Pipe To Int Pipe Exhaust Clamp for 1975-1981 Chevrolet P20 5.7L V8Special Price $4.49 Regular Price $5.99
- Walker Y-Pipe To Int Pipe Exhaust Clamp for 1980-1986 GMC C2500 5.7L V8Special Price $4.49 Regular Price $5.99
- Walker Y-Pipe To Int Pipe Exhaust Clamp for 1973-1974 Cadillac DeVille 7.7L V8Special Price $4.49 Regular Price $5.99
- Walker Tail Pipe Exhaust System Insulator for 2006-2012 Toyota RAV4 2.4L 2.5L L4Special Price $4.99 Regular Price $6.99
- Walker Tail Pipe Exhaust System Hanger for 1983-1984 Volkswagen Rabbit 1.7L L4Special Price $5.13 Regular Price $6.99
- Walker Tail Pipe Exhaust System Hanger for 1977-1980 Volkswagen Scirocco 1.5L 1.6L L4Special Price $5.13 Regular Price $5.41
- 2 pc Walker Y-Pipe To Int Pipe Exhaust Pipe Flange Gaskets for 1985-1987 Ford F-350 7.5L V8Special Price $5.95 Regular Price $8.99
- Walker Y-Pipe To Int Pipe Exhaust Pipe Flange Gasket for 1989-1995 Nissan Pathfinder 3.0L V6Special Price $6.15 Regular Price $8.99
- Walker Y-Pipe To Int Pipe Exhaust Clamp for 1988-1993 Chevrolet C1500 6.2L V8Special Price $7.12 Regular Price $9.99