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 1991 GMC R3500 5.7L V8Special Price $9.51 Regular Price $13.99
- Walker Tail Pipe Exhaust System Hanger for 1981-1985 GMC K2500 4.8L L6Special Price $9.78 Regular Price $13.99
- Walker Int Pipe To Resonator Assm Exhaust Clamp for 1987-1991 Volkswagen Jetta 1.8L 2.0L L4Special Price $3.99 Regular Price $5.99
- Walker Int Pipe To Resonator Assm Exhaust Clamp for 1989-1991 Audi 100 2.3L L5Special Price $3.99 Regular Price $5.99
- Walker Int Pipe To Resonator Assm Exhaust Clamp for 2008-2009 Mercury Sable 3.5L V6Special Price $4.25 Regular Price $5.99
- Walker Int Pipe To Resonator Assm Exhaust Clamp for 1989-1991 Audi 100 Quattro 2.3L L5Special Price $4.25 Regular Price $5.99
- Walker Int Pipe To Resonator Assm Exhaust Clamp for 2007-2010 Lincoln MKX 3.5L V6Special Price $4.25 Regular Price $5.99
- Walker Int Pipe To Resonator Assm Exhaust Clamp for 2008-2009 Ford Taurus X 3.5L V6Special Price $4.25 Regular Price $5.99
- Walker Int Pipe To Resonator Assm Exhaust Clamp for 2008-2009 Ford Taurus 3.5L V6Special Price $4.25 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 Int Pipe To Resonator Assm Exhaust Pipe Flange Gasket for 1988-1995 Honda Civic 1.5L L4Special Price $7.12 Regular Price $9.99
- Walker Int Pipe To Resonator Assm Exhaust Clamp for 2013-2017 Ram 2500 5.7L V8Special Price $7.12 Regular Price $9.99
- Walker Int Pipe To Resonator Assm Exhaust Pipe Flange Gasket for 1988-1991 Honda CRX 1.5L L4Special 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 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 1984-1987 Ford E-150 Econoline 5.8L 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 1987 Ford E-250 Econoline Club Wagon 5.8L V8Special 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 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 2006-2008 Dodge Ram 1500 5.7L V8Special Price $8.09 Regular Price $11.99