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 Resonator Assm To Int Pipe Exhaust Clamp for 2006-2012 Ford Fusion 2.3L 2.5L 3.0L L4 V6Special Price $3.99 Regular Price $5.99
- Walker Extension Pipe Exhaust System Insulator for 2003-2010 Pontiac Vibe 1.8L 2.4L L4Special Price $4.99 Regular Price $6.99
- Walker Resonator Assm To Int Pipe Exhaust Pipe Flange Gasket for 2012-2017 Toyota Camry 2.5L L4Special Price $6.03 Regular Price $8.99
- Walker Resonator Assm To Int Pipe Exhaust Pipe Flange Gasket for 2006-2010 Hyundai Sonata 2.4L L4Special Price $6.21 Regular Price $8.99
- Walker Extension Pipe Exhaust System Insulator for 1989-1992 Dodge Colt 1.5L L4Special Price $7.76 Regular Price $10.99
- Walker Extension Pipe Exhaust System Insulator for 2001-2004 Chevrolet Silverado 2500 6.0L V8Special Price $9.51 Regular Price $13.99
- Walker Extension Pipe Exhaust System Insulator for 1994-1995 GMC C1500 4.3L 5.0L 5.7L 6.5L V6 V8Special Price $9.51 Regular Price $13.99
- Walker Extension Pipe Exhaust System Insulator for 1996-2014 Chevrolet Tahoe 4.8L 5.3L 5.7L 6.2L V8Special Price $9.87 Regular Price $13.99
- Walker Extension Pipe Exhaust System Insulator for 1993-2000 Chevrolet K3500 5.7L 6.5L 7.4L V8Special Price $9.87 Regular Price $13.99
- Walker Extension Pipe Exhaust System Insulator for 2001-2004 GMC Sierra 2500 6.0L V8Special Price $9.87 Regular Price $13.99
- Walker Resonator Assm To Int Pipe Exhaust Pipe Flange Gasket for 2006-2010 Hyundai Azera 3.3L 3.8L V6Special Price $2.56 Regular Price $3.99
- Walker Resonator Assm To Int Pipe Exhaust Pipe Flange Gasket for 2006-2008 Hyundai Sonata 3.3L V6Special Price $2.56 Regular Price $3.99
- Walker Resonator Assm To Int Pipe Exhaust Clamp for 1988 Toyota Van Wagon 2.2L L4Special Price $3.34 Regular Price $4.99
- Walker Resonator Assm To Int Pipe Exhaust Clamp for 1997-2004 Buick Regal 3.8L V6Special Price $3.71 Regular Price $4.99
- Walker Resonator Assm To Int Pipe Exhaust Clamp for 2004-2012 Chevrolet Malibu 2.2L 2.4L 3.5L L4 V6Special Price $3.71 Regular Price $4.99
- Walker Resonator Assm To Int Pipe Exhaust Clamp for 2011-2012 Lincoln MKZ 2.5L L4Special Price $3.99 Regular Price $5.99
- Walker Resonator Assm To Int Pipe Exhaust Clamp for 2006-2011 Mercury Milan 2.3L 2.5L 3.0L L4 V6Special Price $3.99 Regular Price $5.99
- Walker Resonator Assm To Int Pipe Exhaust Clamp for 2005-2009 Buick LaCrosse 3.8L V6Special Price $3.99 Regular Price $5.99
- Walker Resonator Assm To Int Pipe Exhaust Clamp for 2005-2008 Pontiac Grand Prix 3.8L V6Special Price $3.99 Regular Price $5.99
- Walker Resonator Assm To Int Pipe Exhaust Clamp for 1992-1996 Toyota Camry 2.2L L4Special Price $3.99 Regular Price $5.99
- Walker Resonator Assm To Int Pipe Exhaust Clamp for 2006-2011 Chevrolet Impala 3.5L V6Special Price $4.25 Regular Price $5.99
- Walker Resonator Assm To Int Pipe Exhaust Clamp for 2008-2009 Pontiac G6 2.4L L4Special Price $4.25 Regular Price $5.99
- Walker Resonator Assm To Int Pipe Exhaust Clamp for 2014-2016 Chevrolet Impala Limited 3.6L V6Special Price $4.49 Regular Price $5.99
- Walker Extension Pipe Exhaust System Insulator for 2000-2007 Ford Taurus 3.0L V6Special Price $4.99 Regular Price $6.99
- Walker Extension Pipe Exhaust System Insulator for 2000-2005 Mercury Sable 3.0L V6Special Price $4.99 Regular Price $6.99
- Walker Extension Pipe Exhaust System Insulator for 1991-1992 Nissan Axxess 2.4L L4Special Price $5.26 Regular Price $7.99
- Walker Resonator Assm To Int Pipe Exhaust Pipe Flange Gasket for 2004-2005 Chevrolet Classic 2.2L L4Special Price $5.62 Regular Price $7.99
- Walker Resonator Assm To Int Pipe Exhaust Pipe Flange Gasket for 1997-2003 Chevrolet Malibu 2.4L 3.1L L4 V6Special Price $5.62 Regular Price $7.99