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 Extension Pipe To Muffler Exhaust Clamp for 1987-1991 Dodge Daytona 2.2L 3.0L L4 V6Special Price $3.96 Regular Price $5.99
- Walker Extension Pipe To Muffler Exhaust Clamp for 1990-1992 Infiniti M30 3.0L V6Special Price $3.99 Regular Price $5.99
- Walker Extension Pipe To Muffler Exhaust Clamp for 2005-2006 Pontiac Montana 3.5L V6Special Price $3.99 Regular Price $5.99
- Walker Extension Pipe To Muffler Exhaust Clamp for 1996-2000 Chevrolet C3500 5.7L 7.4L V8Special Price $4.23 Regular Price $5.99
- Walker Muffler Left Exhaust System Insulator for 2009-2013 Subaru Forester 2.5L H4Special Price $5.26 Regular Price $7.99
- 3 pc Walker Muffler Left Exhaust System Insulators for 2009-2010 Dodge Journey 3.5L V6Special Price $25.80 Regular Price $36.99
- Walker Extension Pipe To Muffler Exhaust Clamp for 1967 Chevrolet K10 Pickup 4.6L V8Special Price $3.71 Regular Price $4.99
- Walker Extension Pipe To Muffler Exhaust Clamp for 1993 Asuna Sunfire 1.8L L4Special Price $3.71 Regular Price $4.99
- Walker Extension Pipe To Muffler Exhaust Clamp for 1968 GMC P35 P3500 Van 5.0L V8Special Price $3.71 Regular Price $4.99
- Walker Extension Pipe To Muffler Exhaust Clamp for 1990-1993 Hyundai Sonata 3.0L V6Special Price $3.71 Regular Price $4.99
- Walker Extension Pipe To Muffler Exhaust Clamp for 2004-2011 Ford Ranger 2.3L 3.0L 4.0L L4 V6Special Price $3.96 Regular Price $5.99
- Walker Extension Pipe To Muffler Exhaust Clamp for 1989-1993 Ford Thunderbird 3.8L V6Special Price $3.96 Regular Price $5.99
- Walker Extension Pipe To Muffler Exhaust Clamp for 1987-1988 Dodge Shadow 2.2L L4Special Price $3.96 Regular Price $5.99
- Walker Extension Pipe To Muffler Exhaust Clamp for 2003-2013 Toyota Matrix 1.8L L4Special Price $3.96 Regular Price $5.99
- Walker Extension Pipe To Muffler Exhaust Clamp for 1987-1991 Volkswagen Jetta 1.8L 2.0L L4Special Price $3.96 Regular Price $5.99
- Walker Extension Pipe To Muffler Exhaust Clamp for 1968 Chevrolet P30 Van 5.0L V8Special Price $3.96 Regular Price $5.99
- Walker Extension Pipe To Muffler Exhaust Clamp for 2005-2006 Buick Terraza 3.5L V6Special Price $3.99 Regular Price $5.99
- Walker Extension Pipe To Muffler Exhaust Clamp for 2000-2005 Mercury Sable 3.0L V6Special Price $3.99 Regular Price $5.99
- Walker Extension Pipe To Muffler Exhaust Clamp for 1990-1994 Mitsubishi Eclipse 1.8L 2.0L L4Special Price $3.99 Regular Price $5.99