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 Left To Int Left Exhaust Clamp for 1987-1988 Chevrolet V30 6.2L V8Special Price $3.99 Regular Price $5.99
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- 2 pc Walker Muffler Assm Right Exhaust System Insulators for 1998-2002 Honda Accord 3.0L V6Special Price $16.44 Regular Price $22.99
- Walker Front Pipe Left To Int Left Exhaust Clamp for 1982-1986 Chevrolet K30 6.2L V8Special Price $3.99 Regular Price $5.99
- Walker Front Pipe Left To Int Left Exhaust Clamp for 1987 GMC R3500 6.2L V8Special Price $3.99 Regular Price $5.99
- Walker Front Pipe Left To Int Left Exhaust Clamp for 1984-1986 GMC K2500 Suburban 6.2L V8Special Price $3.99 Regular Price $5.99
- Walker Front Pipe Left To Int Left Exhaust Clamp for 1989-1991 Chevrolet V3500 6.2L V8Special Price $3.99 Regular Price $5.99
- Walker Front Pipe Left To Int Left Exhaust Clamp for 1975-1978 GMC P35 7.4L V8Special Price $4.23 Regular Price $5.99
- Walker Front Pipe Left To Int Left Exhaust Clamp for 1982-1988 GMC P2500 6.2L V8Special Price $4.23 Regular Price $5.99
- Walker Front Pipe Left To Int Left Exhaust Clamp for 1987-1991 GMC V2500 Suburban 6.2L V8Special Price $4.25 Regular Price $5.99
- Walker Front Pipe Left To Int Left Exhaust Clamp for 1984-1986 Chevrolet K20 Suburban 6.2L V8Special Price $4.25 Regular Price $5.99
- Walker Front Pipe Left To Int Left Exhaust Clamp for 1982-1991 GMC K3500 6.2L V8Special Price $4.25 Regular Price $5.99
- Walker Front Pipe Left To Int Left Exhaust Clamp for 1987 Chevrolet R30 6.2L V8Special Price $4.25 Regular Price $5.99
- Walker Front Pipe Left To Int Left Exhaust Clamp for 1987-1989 GMC V3500 6.2L V8Special Price $4.25 Regular Price $5.99
- Walker Front Pipe Left To Int Left Exhaust Clamp for 1975-1988 Chevrolet P30 6.2L 7.4L V8Special Price $4.49 Regular Price $5.99
- Walker Front Pipe Left To Int Left Exhaust Clamp for 1979-1988 GMC P3500 6.2L 7.4L V8Special Price $4.49 Regular Price $5.99
- Walker Front Pipe Left To Int Left Exhaust Clamp for 1982-1988 Chevrolet P20 6.2L V8Special Price $4.49 Regular Price $5.99
- Walker Muffler Assm Right Exhaust System Insulator for 2005 Subaru Legacy 2.5L H4Special Price $4.99 Regular Price $6.99
- Walker Muffler Assm Right Exhaust System Insulator for 2007-2009 Acura MDX 3.7L V6Special Price $5.26 Regular Price $7.99
- Walker Muffler Assm Right Exhaust System Insulator for 2007-2009 Acura MDX 3.7L V6Special Price $6.56 Regular Price $8.99
- Walker Muffler Assm Right Exhaust System Insulator for 2007-2017 Lexus ES350 3.5L V6Special Price $7.76 Regular Price $10.99
- Walker Muffler Assm Right Exhaust System Insulator for 2006-2012 Ford Fusion 3.0L 3.5L V6Special Price $7.76 Regular Price $10.99
- Walker Muffler Assm Right Exhaust System Insulator for 2007-2011 Toyota Camry 3.5L V6Special Price $7.76 Regular Price $10.99
- Walker Muffler Assm Right Exhaust System Insulator for 2006-2010 Hyundai Azera 3.3L 3.8L V6Special Price $7.76 Regular Price $10.99
- Walker Muffler Assm Right Exhaust System Insulator for 2003-2007 Honda Accord 3.0L V6Special Price $8.09 Regular Price $11.99
- Walker Muffler Assm Right Exhaust System Insulator for 2004-2008 Acura TL 3.2L V6Special Price $8.09 Regular Price $11.99
- Walker Muffler Assm Right Exhaust System Insulator for 2007-2008 Infiniti G35 3.5L V6Special Price $8.09 Regular Price $11.99
- Walker Muffler Assm Right Exhaust System Insulator for 2005-2012 Toyota Avalon 3.5L V6Special Price $8.09 Regular Price $11.99
- Walker Muffler Assm Right Exhaust System Insulator for 2006-2016 Kia Optima 2.0L 2.4L 2.7L L4 V6Special Price $9.87 Regular Price $13.99