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 1990-1994 Eagle Talon 1.8L 2.0L L4Special Price $8.09 Regular Price $11.99
- 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 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 Converter Front Right To Rear Right Exhaust Pipe Flange Gasket for 2005-2012 Nissan Pathfinder 4.0L V6Special Price $3.08 Regular Price $3.99
- Walker Converter Front Right To Rear Right Exhaust Pipe Flange Gasket for 2007-2015 Nissan Titan 5.6L V8Special Price $3.08 Regular Price $3.99
- Walker Converter Front Right To Rear Right Exhaust Pipe Flange Gasket for 2007-2010 Infiniti QX56 5.6L V8Special Price $3.31 Regular Price $4.99
- Walker Converter Front Right To Rear Right Exhaust Pipe Flange Gasket for 2009-2012 Suzuki Equator 4.0L V6Special Price $3.31 Regular Price $4.99
- Walker Converter Front Right To Rear Right Exhaust Pipe Flange Gasket for 2010-2017 Lexus GX460 4.6L V8Special Price $3.35 Regular Price $4.99
- Walker Converter Front Right To Rear Right Exhaust Pipe Flange Gasket for 2005-2015 Toyota Tacoma 4.0L V6Special Price $3.35 Regular Price $4.99
- Walker Converter Front Right To Rear Right Exhaust Pipe Flange Gasket for 2005-2009 Lexus GX470 4.7L V8Special Price $3.59 Regular Price $4.99
- Walker Converter Front Right To Rear Right Exhaust Pipe Flange Gasket for 2003-2017 Toyota 4Runner 4.0L 4.7L V6 V8Special Price $3.59 Regular Price $4.99
- 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 Muffler Exhaust System Insulator for 1990-1994 Mitsubishi Eclipse 1.8L 2.0L L4Special Price $4.99 Regular Price $6.99
- Walker Muffler Exhaust System Insulator for 2000-2007 Ford Taurus 3.0L V6Special Price $4.99 Regular Price $6.99
- Walker Muffler Exhaust System Insulator for 1990-1994 Plymouth Laser 1.8L 2.0L L4Special Price $5.26 Regular Price $7.99
- Walker Muffler Exhaust System Insulator for 1993-1997 Toyota Corolla 1.6L 1.8L L4Special Price $6.56 Regular Price $8.99