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 Left Exhaust Clamp for 1987 GMC R3500 6.2L V8Special Price $3.99 Regular Price $5.99
- Walker Front Pipe Left To Int Left Exhaust Clamp for 1987-1988 Chevrolet V30 6.2L V8Special Price $3.99 Regular Price $5.99
- Walker Front Pipe Left To Int Left Exhaust Clamp for 1982-1986 Chevrolet C30 6.2L V8Special Price $4.25 Regular Price $5.99
- Walker Front Pipe Left To Int Left Exhaust Clamp for 1982-1991 GMC K3500 6.2L V8Special Price $4.25 Regular Price $5.99
- Walker Front Pipe Left To Int Left Exhaust Clamp for 1987-1989 GMC V3500 6.2L V8Special Price $4.25 Regular Price $5.99
- Walker Front Pipe Left To Int Left Exhaust Clamp for 1975-1988 Chevrolet P30 6.2L 7.4L V8Special Price $4.49 Regular Price $5.99
- Walker Tail Pipe Exhaust System Insulator for 1988-1990 Ford Bronco II 2.9L V6Special Price $7.76 Regular Price $10.99
- Walker Tail Pipe Exhaust System Insulator for 1986-2011 Ford Ranger 2.0L 2.3L 2.9L 3.0L 4.0L L4 V6Special Price $8.09 Regular Price $11.99
- Walker Tail Pipe Exhaust System Insulator for 1987 Ford E-250 Econoline 5.8L V8Special Price $8.09 Regular Price $11.99
- Walker Tail Pipe Exhaust System Insulator for 1990-1995 GMC K3500 5.7L 6.2L V8Special Price $9.87 Regular Price $13.99
- Walker Tail Pipe Exhaust System Insulator for 1992-1996 GMC G3500 4.3L 5.7L V6 V8Special Price $9.87 Regular Price $13.99
- 2 pc Walker Tail Pipe Exhaust System Insulators for 1987-1995 Jeep Wrangler 2.5L 4.0L 4.2L L4 L6Special Price $16.44 Regular Price $22.99
- 2 pc Walker Tail Pipe Exhaust System Insulators for 1992-1999 Chevrolet K2500 Suburban 5.7L V8Special Price $20.51 Regular Price $28.99
- Walker Front Pipe Left To Int Left Exhaust Clamp for 1982-1986 Chevrolet K30 6.2L V8Special Price $3.99 Regular Price $5.99
- Walker Front Pipe Left To Int Left Exhaust Clamp for 1984-1986 GMC K2500 Suburban 6.2L V8Special Price $3.99 Regular Price $5.99
- Walker Front Pipe Left To Int Left Exhaust Clamp for 1989-1991 Chevrolet V3500 6.2L V8Special Price $3.99 Regular Price $5.99
- Walker Front Pipe Left To Int Left Exhaust Clamp for 1975-1978 GMC P35 7.4L V8Special Price $4.23 Regular Price $5.99
- Walker Front Pipe Left To Int Left Exhaust Clamp for 1982-1988 GMC P2500 6.2L V8Special Price $4.23 Regular Price $5.99
- Walker Front Pipe Left To Int Left Exhaust Clamp for 1987 Chevrolet R30 6.2L V8Special Price $4.25 Regular Price $5.99
- Walker Front Pipe Left To Int Left Exhaust Clamp for 1989-1991 Chevrolet V2500 Suburban 6.2L V8Special Price $4.25 Regular Price $5.99
- Walker Front Pipe Left To Int Left Exhaust Clamp for 1984-1986 Chevrolet K20 Suburban 6.2L V8Special Price $4.25 Regular Price $5.99
- Walker Front Pipe Left To Int Left Exhaust Clamp for 1987-1991 GMC V2500 Suburban 6.2L V8Special Price $4.25 Regular Price $5.99
- Walker Front Pipe Left To Int Left Exhaust Clamp for 1982-1988 Chevrolet P20 6.2L V8Special Price $4.49 Regular Price $5.99
- Walker Front Pipe Left To Int Left Exhaust Clamp for 1979-1988 GMC P3500 6.2L 7.4L 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
- Walker Tail Pipe Exhaust Clamp for 1991 Chevrolet G20 5.7L V8Special Price $7.12 Regular Price $9.99
- Walker Tail Pipe Exhaust Clamp for 1991 GMC G1500 5.7L V8Special Price $7.12 Regular Price $9.99