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 Int Pipe To Muffler Assm Exhaust Clamp for 2006-2012 Ford Fusion 2.3L 2.5L L4Special Price $3.96 Regular Price $5.99
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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
- 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 1985-1995 Ford F-350 5.8L 7.5L V8Special 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
- 2 pc Walker Tail Pipe Exhaust System Insulators for 1991-1996 GMC G3500 7.4L V8Special Price $19.94 Regular Price $27.99
- 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 To Muffler Assm Exhaust Pipe Flange Gasket for 1988-1989 Acura Integra 1.6L L4Special Price $2.61 Regular Price $3.99
- Walker Int Pipe To Muffler Assm Exhaust Pipe Flange Gasket for 1983-1987 Honda Prelude 1.8L L4Special Price $2.61 Regular Price $3.99
- Walker Int Pipe To Muffler Assm Exhaust Pipe Flange Gasket for 1996-2004 Acura RL 3.5L V6Special Price $3.31 Regular Price $4.99
- Walker Int Pipe To Muffler Assm Exhaust Clamp for 1995 Chrysler Intrepid 3.3L V6Special Price $3.71 Regular Price $4.99
- Walker Int Pipe To Muffler Assm Exhaust Clamp for 2006-2011 Mercury Milan 2.3L 2.5L L4Special Price $3.71 Regular Price $4.99
- Walker Int Pipe To Muffler Assm Exhaust Clamp for 2011-2012 Lincoln MKZ 2.5L L4Special Price $3.71 Regular Price $4.99
- Walker Int Pipe To Muffler Assm Exhaust Clamp for 2007-2010 Kia Rondo 2.4L L4Special Price $3.71 Regular Price $4.99
- Walker Int Pipe To Muffler Assm Exhaust Clamp for 2001-2004 Ford Escape 2.0L L4Special Price $3.71 Regular Price $4.99
- Walker Int Pipe To Muffler Assm Exhaust Clamp for 2007-2015 Nissan Titan 5.6L V8Special Price $3.71 Regular Price $4.99
- Walker Int Pipe To Muffler Assm Exhaust Clamp for 2006-2017 Hyundai Sonata 2.4L L4Special Price $3.71 Regular Price $4.99
- Walker Int Pipe To Muffler Assm Exhaust Clamp for 2012-2015 Chevrolet Captiva Sport 2.4L L4Special Price $3.96 Regular Price $5.99
- Walker Int Pipe To Muffler Assm Exhaust Clamp for 2007-2010 Infiniti QX56 5.6L V8Special Price $3.96 Regular Price $5.99
- Walker Int Pipe To Muffler Assm Exhaust Clamp for 2001-2004 Mazda Tribute 2.0L L4Special Price $3.96 Regular Price $5.99
- Walker Int Pipe To Muffler Assm Exhaust Clamp for 2008-2012 Chevrolet Malibu 2.4L 3.5L 3.6L L4 V6Special Price $3.99 Regular Price $5.99
- Walker Int Pipe To Muffler Assm Exhaust Clamp for 1994-1999 Volkswagen Jetta 2.8L V6Special Price $3.99 Regular Price $5.99
- Walker Int Pipe To Muffler Assm Exhaust Clamp for 2008-2009 Saturn Aura 2.4L 3.5L L4 V6Special Price $3.99 Regular Price $5.99