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 Muffler To Extension Pipe Exhaust Clamp for 2002-2005 Mercury Mountaineer 4.0L 4.6L V6 V8Special Price $4.25 Regular Price $5.99
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- Walker Int Pipe Rear Exhaust System Insulator for 1992-1996 Chevrolet G30 5.7L V8Special Price $9.87 Regular Price $13.99
- Walker Int Pipe Rear Exhaust System Hanger for 1982-1987 GMC P3500 5.7L V8Special Price $10.15 Regular Price $13.99
- Walker Muffler To Extension Pipe Exhaust Clamp for 1991-1992 Nissan Axxess 2.4L L4Special Price $3.96 Regular Price $5.99
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- Walker Muffler To Extension Pipe Exhaust Clamp for 2013-2016 Hyundai Santa Fe Sport 2.4L L4Special Price $4.25 Regular Price $5.99
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- Walker Muffler To Extension Pipe Exhaust Clamp for 2014-2015 Kia Sorento 2.4L L4Special Price $4.25 Regular Price $5.99
- Walker Muffler To Extension Pipe Exhaust Clamp for 2007-2010 Ford Explorer Sport Trac 4.6L V8Special Price $4.25 Regular Price $5.99
- Walker Muffler To Extension Pipe Exhaust Clamp for 2007-2008 Saturn Outlook 3.6L V6Special Price $4.25 Regular Price $5.99
- Walker Muffler To Extension Pipe Exhaust Clamp for 1990-1996 Chevrolet P30 7.4L V8Special Price $7.12 Regular Price $9.99
- Walker Muffler To Extension Pipe Exhaust Clamp for 2011-2017 Ford F-350 Super Duty 6.2L V8Special Price $7.12 Regular Price $9.99
- Walker Muffler To Extension Pipe Exhaust Clamp for 2011-2017 Ford F-250 Super Duty 6.2L V8Special Price $7.12 Regular Price $9.99
- Walker Int Pipe Rear Exhaust System Insulator for 1999-2004 Chrysler 300M 3.5L V6Special Price $7.76 Regular Price $10.99
- Walker Int Pipe Rear Exhaust System Insulator for 2009-2010 Dodge Journey 3.5L V6Special Price $8.09 Regular Price $11.99
- Walker Int Pipe Rear Exhaust System Insulator for 2009 Ford Flex 3.5L V6Special Price $8.09 Regular Price $11.99
- Walker Int Pipe Rear Exhaust System Insulator for 1999-2000 GMC C2500 6.5L V8Special Price $9.51 Regular Price $13.99
- Walker Int Pipe Rear Exhaust System Hanger for 1982-1987 GMC P2500 5.7L V8Special Price $9.78 Regular Price $13.99
- Walker Int Pipe Rear Exhaust System Hanger for 1982-1987 Chevrolet P30 5.7L V8Special Price $9.78 Regular Price $13.99
- Walker Int Pipe Rear Exhaust System Insulator for 1992-1996 GMC G3500 5.7L V8Special Price $9.87 Regular Price $13.99
- Walker Int Pipe Rear Exhaust System Insulator for 1999-2000 GMC K2500 6.5L V8Special Price $9.87 Regular Price $13.99
- Walker Int Pipe Rear Exhaust System Insulator for 1999-2000 Chevrolet K2500 6.5L V8Special Price $9.87 Regular Price $13.99
- Walker Int Pipe Rear Exhaust System Insulator for 1999-2000 Chevrolet C2500 6.5L V8Special Price $9.87 Regular Price $13.99
- 2 pc Walker Int Pipe Rear Exhaust System Insulators for 1996-1997 GMC C1500 6.5L V8Special Price $20.51 Regular Price $28.99
- 2 pc Walker Int Pipe Rear Exhaust System Insulators for 1996-1998 Chevrolet C1500 6.5L V8Special Price $20.51 Regular Price $28.99