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 Extension Pipe To Converter Exhaust Clamp for 1975-1976 Oldsmobile Cutlass Supreme 5.7L 7.5L V8Special Price $4.23 Regular Price $5.99
- Walker Int Pipe To Left Muffler Exhaust Pipe Flange Gasket for 2008-2014 Subaru Tribeca 3.6L H6Special Price $5.77 Regular Price $7.99
- Walker Int Pipe To Left Muffler Exhaust Clamp for 1984-1986 GMC C1500 Suburban 6.2L V8Special Price $4.23 Regular Price $5.99
- Walker Int Pipe To Left Muffler Exhaust Clamp for 1987-1991 GMC R1500 Suburban 6.2L V8Special Price $4.23 Regular Price $5.99
- Walker Extension Pipe To Converter Exhaust Clamp for 1975-1977 Oldsmobile Cutlass 5.7L 7.5L V8Special Price $4.23 Regular Price $5.99
- Walker Int Pipe To Left Muffler Exhaust Clamp for 1987-1991 GMC R2500 Suburban 6.2L V8Special Price $4.23 Regular Price $5.99
- Walker Extension Pipe To Converter Exhaust Clamp for 1980-1981 Pontiac Grand LeMans 3.8L V6Special Price $4.25 Regular Price $5.99
- Walker Extension Pipe To Converter Exhaust Clamp for 1980-1981 Pontiac LeMans 4.3L 4.4L 4.9L V8Special Price $4.25 Regular Price $5.99
- Walker Int Pipe To Left Muffler Exhaust Clamp for 1989-1991 Chevrolet R1500 Suburban 6.2L V8Special Price $4.49 Regular Price $5.99
- Walker Int Pipe To Left Muffler Exhaust Clamp for 1987-1988 Chevrolet R10 Suburban 6.2L V8Special Price $4.49 Regular Price $5.99
- Walker Extension Pipe To Converter Exhaust Clamp for 1975-1976 Oldsmobile Cutlass Salon 5.7L 7.5L V8Special Price $4.49 Regular Price $5.99
- Walker Int Pipe To Left Muffler Exhaust Clamp for 1984-1986 GMC C2500 Suburban 6.2L V8Special Price $4.49 Regular Price $5.99
- Walker Int Pipe To Left Muffler Exhaust Clamp for 1989-1991 Chevrolet R2500 Suburban 6.2L V8Special Price $4.49 Regular Price $5.99