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 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 Extension Pipe To Muffler Rear Exhaust Clamp for 2000-2004 Dodge Intrepid 3.5L V6Special Price $4.23 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 1998-2002 Chevrolet Camaro 5.7L V8Special Price $7.76 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 2004-2006 Mazda B4000 4.0L V6Special Price $7.76 Regular Price $10.99
- Walker Tail Pipe Exhaust System Insulator for 1984-1987 Ford E-150 Econoline 5.8L V8Special Price $7.76 Regular Price $10.99
- Walker Tail Pipe Exhaust System Insulator for 1983-1995 Ford F-150 4.9L 5.0L 5.8L L6 V8Special Price $7.76 Regular Price $10.99
- Walker Tail Pipe Exhaust System Insulator for 2005-2009 Mazda B2300 2.3L L4Special Price $7.76 Regular Price $10.99
- Walker Tail Pipe Exhaust System Insulator for 1988-1991 Dodge B150 3.9L V6Special Price $7.76 Regular Price $10.99
- Walker Tail Pipe Exhaust System Insulator for 1987 Ford E-250 Econoline Club Wagon 5.8L V8Special Price $7.76 Regular Price $10.99
- Walker Tail Pipe Exhaust System Insulator for 2006-2008 Dodge Ram 1500 5.7L V8Special Price $8.09 Regular Price $11.99
- Walker Tail Pipe Exhaust System Insulator for 2009-2016 Ford E-350 Super Duty 5.4L V8Special Price $8.09 Regular Price $11.99
- Walker Tail Pipe Exhaust System Insulator for 1985-1995 Ford F-250 4.9L 5.0L 7.5L L6 V8Special Price $8.09 Regular Price $11.99
- Walker Tail Pipe Exhaust System Insulator for 2004-2006 Mazda B3000 3.0L V6Special Price $8.09 Regular Price $11.99
- Walker Tail Pipe Exhaust System Insulator for 1996-1998 Jeep Grand Cherokee 4.0L 5.2L L6 V8Special Price $8.09 Regular Price $11.99
- Walker Tail Pipe Exhaust System Insulator for 1985-1995 Ford F-350 5.8L 7.5L V8Special Price $8.09 Regular Price $11.99
- Walker Tail Pipe Exhaust System Insulator for 1988-1991 Dodge B250 3.9L V6Special Price $8.09 Regular Price $11.99
- Walker Tail Pipe Exhaust System Insulator for 1984-1987 Ford E-150 Econoline Club Wagon 5.8L V8Special Price $8.09 Regular Price $11.99