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.
Filter By Part Details
- Walker Muffler Exhaust System Insulator for 1993-1997 Geo Prizm 1.6L 1.8L L4Special Price $6.56 Regular Price $8.99
- Walker Muffler Exhaust System Insulator for 2008-2009 Ford Taurus X 3.5L V6Special Price $8.09 Regular Price $11.99
- Walker Muffler Exhaust System Insulator for 1990-1994 Eagle Talon 1.8L 2.0L L4Special Price $8.09 Regular Price $11.99
- Walker Muffler Exhaust System Insulator for 1998-2002 Ford E-150 Econoline Club Wagon 5.4L V8Special Price $9.51 Regular Price $13.99
- Walker Muffler Exhaust System Insulator for 1994-1995 Buick Regal 3.1L V6Special Price $9.51 Regular Price $13.99
- 2 pc Walker Muffler Exhaust System Insulators for 2004-2008 Chevrolet Malibu 2.2L 3.5L L4 V6Special Price $10.91 Regular Price $15.99
- 2 pc Walker Muffler Exhaust System Insulators for 1993-1997 Toyota Corolla 1.6L 1.8L L4Special Price $11.30 Regular Price $15.99
- Walker Muffler Exhaust Bolt & Spring for 1995-1998 Mazda Protege 1.5L L4Special Price $12.32 Regular Price $17.99
- 2 pc Walker Muffler Exhaust System Insulators for 1997-1999 Dodge Dakota 3.9L 5.2L V6 V8Special Price $16.95 Regular Price $23.99
- 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 1989-1991 Chevrolet V3500 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 1987-1988 Chevrolet V30 6.2L V8Special Price $3.99 Regular Price $5.99
- Walker Muffler Exhaust System Insulator for 1995-1997 Honda Accord 2.7L V6Special Price $4.11 Regular Price $5.99
- Walker Muffler Exhaust System Insulator for 1992-1996 Honda Prelude 2.2L 2.3L L4Special Price $4.11 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 Chevrolet R30 6.2L V8Special Price $4.25 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 1982-1991 GMC K3500 6.2L V8Special Price $4.25 Regular Price $5.99
- Walker Front Pipe Left To Int Left Exhaust Clamp for 1982-1986 Chevrolet C30 6.2L V8Special Price $4.25 Regular Price $5.99