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 Front Pipe Left To Int Exhaust Clamp for 1987-1991 GMC R2500 Suburban 6.2L V8Special Price $3.99 Regular Price $5.99
- Walker Front Pipe Left To Int Exhaust Clamp for 1987-1988 Chevrolet R20 Suburban 6.2L V8Special Price $4.25 Regular Price $5.99
- Walker Front Pipe Left To Int Exhaust Clamp for 1984-1986 Chevrolet K10 Suburban 6.2L V8Special Price $4.25 Regular Price $5.99
- Walker Int Pipe Left Exhaust System Insulator for 1996-2000 GMC C2500 5.7L 7.4L V8Special Price $9.51 Regular Price $13.99
- Walker Int Pipe Left Exhaust System Insulator for 1996-2000 Chevrolet K2500 5.7L 7.4L V8Special Price $9.87 Regular Price $13.99
- Walker Front Pipe Left To Int Exhaust Clamp for 1984-1986 Chevrolet C10 Suburban 6.2L V8Special Price $3.99 Regular Price $5.99
- Walker Front Pipe Left To Int Exhaust Clamp for 1987-1988 Chevrolet R10 Suburban 6.2L V8Special Price $3.99 Regular Price $5.99
- Walker Front Pipe Left To Int Exhaust Clamp for 1989-1991 Chevrolet V1500 Suburban 6.2L V8Special Price $3.99 Regular Price $5.99
- Walker Front Pipe Left To Int Exhaust Clamp for 1987-1988 Chevrolet V10 Suburban 6.2L V8Special Price $3.99 Regular Price $5.99
- Walker Front Pipe Left To Int Exhaust Clamp for 1984-1986 GMC C1500 Suburban 6.2L V8Special Price $4.25 Regular Price $5.99
- Walker Front Pipe Left To Int Exhaust Clamp for 1987-1991 GMC V1500 Suburban 6.2L V8Special Price $4.25 Regular Price $5.99
- Walker Front Pipe Left To Int Exhaust Clamp for 1989-1991 Chevrolet R1500 Suburban 6.2L V8Special Price $4.25 Regular Price $5.99
- Walker Front Pipe Left To Int Exhaust Clamp for 1989-1991 Chevrolet R2500 Suburban 6.2L V8Special Price $4.25 Regular Price $5.99
- Walker Int Pipe Left Exhaust System Insulator for 1996-2000 Chevrolet C2500 5.7L 7.4L V8Special Price $9.51 Regular Price $13.99
- Walker Int Pipe Left Exhaust System Insulator for 1996-2000 GMC C3500 5.7L 7.4L V8Special Price $9.51 Regular Price $13.99
- Walker Int Pipe Left Exhaust System Insulator for 1996-2000 Chevrolet C3500 5.7L 7.4L V8Special Price $9.51 Regular Price $13.99
- Walker Int Pipe Left Exhaust System Hanger for 1979-1988 GMC P3500 6.2L 7.4L V8Special Price $9.78 Regular Price $13.99
- Walker Int Pipe Left Exhaust System Hanger for 1975-1988 Chevrolet P30 6.2L 7.4L V8Special Price $9.78 Regular Price $13.99
- Walker Int Pipe Left Exhaust System Insulator for 1996-2000 Chevrolet K3500 5.7L 7.4L V8Special Price $9.87 Regular Price $13.99