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 Inlet Front Exhaust Pipe Flange Gasket for 2009-2011 Mazda Tribute 2.5L L4Special Price $2.25 Regular Price $2.99
- Walker Front Pipe Inlet Front Exhaust Pipe Flange Gasket for 2009-2012 Ford Escape 2.5L L4Special Price $2.25 Regular Price $2.99
- Walker Front Pipe Inlet Front Exhaust Pipe Flange Gasket for 2009-2011 Mercury Mariner 2.5L L4Special Price $2.25 Regular Price $2.99
- Walker Converter Left To Right Exhaust Pipe Flange Gasket for 2005-2006 Chevrolet Malibu 3.5L V6Special Price $2.69 Regular Price $3.99
- Walker Converter Left To Right Exhaust Clamp for 2004-2005 Dodge Ram 1500 3.7L 4.7L 5.7L V6 V8Special Price $3.99 Regular Price $5.99
- Walker Converter Left To Right Exhaust Clamp for 2007-2009 Dodge Durango 5.7L V8Special Price $3.99 Regular Price $5.99
- Walker Converter Left To Right Exhaust Clamp for 2007-2009 Chrysler Aspen 5.7L V8Special Price $3.99 Regular Price $5.99
- Walker Converter Left To Right Exhaust Clamp for 2004-2019 Ford F-150 2.7L 3.5L 4.2L 4.6L 5.4L V6 V8Special Price $4.23 Regular Price $5.99
- Walker Front Pipe Inlet Front Exhaust Pipe Flange Gasket for 1984-1987 Dodge Colt 2.0L L4Special Price $5.77 Regular Price $7.99
- Walker Converter Left To Right Exhaust Pipe Flange Gasket for 2007-2009 Mazda B4000 4.0L V6Special Price $6.21 Regular Price $8.99
- Walker Converter Left To Right Exhaust Pipe Flange Gasket for 2007 Mazda B3000 3.0L V6Special Price $6.21 Regular Price $8.99
- Walker Front Pipe Inlet Front Exhaust Pipe Flange Gasket for 1995 Nissan 200SX 1.6L L4Special Price $7.12 Regular Price $9.99
- 2 pc Walker Converter Left To Right Exhaust Clamps for 2004-2008 Ford F-150 4.6L V8Special Price $14.67 Regular Price $20.99
- Walker Front Pipe Inlet Front Exhaust Bolt & Spring for 1982-1984 Chevrolet Monte Carlo 5.7L V8Special Price $15.11 Regular Price $21.99
- Walker Front Pipe Inlet Front Exhaust Bolt & Spring for 1981-1984 Pontiac Grand Prix 5.7L V8Special Price $15.11 Regular Price $21.99
- Walker Front Pipe Inlet Front Exhaust Bolt & Spring for 1982-1983 Chevrolet Malibu 5.7L V8Special Price $15.11 Regular Price $21.99
- Walker Front Pipe Inlet Front Exhaust Bolt & Spring for 1982-1983 Buick Regal 5.7L V8Special Price $15.11 Regular Price $21.99
- Walker Converter Left To Right Exhaust Pipe Flange Gasket for 1996-2000 Chevrolet C3500 5.7L 7.4L V8Special Price $19.76 Regular Price $27.99
- Walker Converter Left To Right Exhaust Pipe Flange Gasket for 1996-2000 Chevrolet K3500 5.7L 7.4L V8Special Price $19.76 Regular Price $27.99
- Walker Converter Left To Right Exhaust Pipe Flange Gasket for 1996-2000 GMC K2500 5.7L 7.4L V8Special Price $19.76 Regular Price $27.99
- Walker Converter Left To Right Exhaust Pipe Flange Gasket for 1996-2000 GMC C3500 5.7L 7.4L V8Special Price $20.33 Regular Price $28.99
- 2 pc Walker Front Pipe Inlet Front Exhaust Pipe Flange Gaskets for 1996-2004 Acura RL 3.5L V6Special Price $26.67 Regular Price $37.99