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 Front To Int Pipe Exhaust Clamp for 1988-1989 GMC K3500 5.7L 7.4L V8Special Price $7.12 Regular Price $9.99
- Walker Converter Front To Int Pipe Exhaust Clamp for 1988-1989 Chevrolet K3500 5.7L 7.4L V8Special Price $7.12 Regular Price $9.99
- Walker Converter Front To Int Pipe Exhaust Clamp for 1989 Chevrolet V3500 5.7L 7.4L V8Special Price $7.12 Regular Price $9.99
- Walker Converter Front To Int Pipe Exhaust Clamp for 1987-1988 Chevrolet R30 5.7L 7.4L V8Special Price $7.12 Regular Price $9.99
- Walker Converter Front To Int Pipe Exhaust Clamp for 1987-1988 Chevrolet V30 5.7L 7.4L V8Special Price $7.44 Regular Price $10.99
- Walker Converter Front To Int Pipe Exhaust Clamp for 1987-1988 Chevrolet P30 5.7L V8Special Price $7.44 Regular Price $10.99
- Walker Muffler Assm To Extension Pipe Exhaust Clamp for 1990-1996 Chevrolet P30 7.4L V8Special Price $7.44 Regular Price $10.99
- Walker Converter Front To Int Pipe Exhaust Clamp for 1987-1989 GMC R3500 5.7L 7.4L V8Special Price $7.44 Regular Price $10.99
- Walker Converter Front To Int Pipe Exhaust Clamp for 1989 Chevrolet R3500 5.7L 7.4L V8Special Price $7.44 Regular Price $10.99
- Walker Converter Front To Int Pipe Exhaust Pipe Flange Gasket for 2007-2013 Suzuki SX4 2.0L L4Special Price $7.44 Regular Price $10.99
- Walker Converter Front To Int Pipe Exhaust Bolt & Spring for 2007-2013 Suzuki SX4 2.0L L4Special Price $20.00 Regular Price $28.99