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 Tail Pipe Exhaust System Insulator for 2005-2009 Mazda B2300 2.3L L4Special Price $7.76 Regular Price $10.99
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- 2 pc Walker Tail Pipe Exhaust System Insulators for 1992-2006 GMC Yukon 4.8L 5.3L 5.7L 6.0L V8Special Price $20.51 Regular Price $28.99
- 2 pc Walker Tail Pipe Exhaust System Insulators for 2007 GMC Sierra 3500 Classic 6.0L 8.1L V8Special Price $20.51 Regular Price $28.99
- 2 pc Walker Tail Pipe Exhaust System Hangers for 1989-1991 Chevrolet R1500 Suburban 6.2L V8Special Price $21.06 Regular Price $29.99
- 3 pc Walker Tail Pipe Exhaust System Insulators for 2011-2017 Chevrolet Silverado 3500 HD 6.0L V8Special Price $31.15 Regular Price $44.99
- Walker Int Pipe Left To Muffler Left Exhaust Clamp for 1987 Chevrolet R30 6.2L V8Special Price $4.23 Regular Price $5.99
- Walker Int Pipe Left To Muffler Left Exhaust Clamp for 1982-1986 GMC C3500 6.2L V8Special Price $4.23 Regular Price $5.99
- Walker Int Pipe Left To Muffler Left Exhaust Clamp for 1984-1986 Chevrolet K20 Suburban 6.2L V8Special Price $4.23 Regular Price $5.99
- Walker Int Pipe Left To Muffler Left Exhaust Clamp for 1987 GMC R3500 6.2L V8Special Price $4.23 Regular Price $5.99
- Walker Int Pipe Left To Muffler Left Exhaust Clamp for 1979-1988 GMC P3500 6.2L 7.4L V8Special Price $4.23 Regular Price $5.99
- Walker Int Pipe Left To Muffler Left Exhaust Clamp for 1989-1991 Chevrolet V2500 Suburban 6.2L V8Special Price $4.23 Regular Price $5.99
- Walker Int Pipe Left To Muffler Left Exhaust Clamp for 1982-1986 Chevrolet C30 6.2L V8Special Price $4.23 Regular Price $5.99
- Walker Int Pipe Left To Muffler Left Exhaust Clamp for 1987 Chevrolet V30 6.2L V8Special Price $4.49 Regular Price $5.99
- Walker Int Pipe Left To Muffler Left Exhaust Clamp for 1975-1978 GMC P35 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
- Walker Tail Pipe Exhaust Clamp for 1991 GMC G2500 5.7L V8Special Price $7.44 Regular Price $10.99
- Walker Tail Pipe Exhaust Clamp for 1991 Chevrolet G10 5.7L V8Special Price $7.44 Regular Price $10.99
- Walker Tail Pipe Exhaust System Insulator for 2003-2011 Honda Element 2.4L L4Special Price $7.76 Regular Price $10.99
- Walker Tail Pipe Exhaust System Insulator for 1998-2002 Chevrolet Camaro 5.7L V8Special Price $7.76 Regular Price $10.99
- Walker Tail Pipe Exhaust System Insulator for 2004-2006 Mazda B4000 4.0L V6Special Price $7.76 Regular Price $10.99