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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- Fel-Pro Front Exhaust Pipe Flange Gasket for 2003-2009 Lexus GX470 4.7L V8Special Price $3.35 Regular Price $4.99
- Fel-Pro Front Exhaust Pipe Flange Gasket for 2002-2006 Infiniti Q45 4.5L V8Special Price $3.56 Regular Price $4.99
- Fel-Pro Front Exhaust Pipe Flange Gasket for 2014-2016 Infiniti Q50 3.5L 3.7L V6Special Price $3.56 Regular Price $4.99
- Fel-Pro Front Exhaust Pipe Flange Gasket for 2000-2009 Toyota Tundra 4.7L V8Special Price $3.59 Regular Price $4.99
- Fel-Pro Front Exhaust Pipe Flange Gasket for 1990-1997 Toyota Celica 1.6L 1.8L L4Special Price $3.71 Regular Price $4.99
- Fel-Pro Front Exhaust Pipe Flange Gasket for 2012-2013 Infiniti M35h 3.5L V6Special Price $3.81 Regular Price $4.99
- Walker Int Pipe Exhaust System Insulator for 1983-1985 Toyota Celica 2.4L 2.8L L4 L6Special Price $5.26 Regular Price $7.99
- Walker Int Pipe Exhaust System Insulator for 1990-1994 Mitsubishi Eclipse 2.0L L4Special Price $7.76 Regular Price $10.99
- Walker Int Pipe Exhaust System Insulator for 2002-2005 Hyundai XG350 3.5L V6Special Price $8.09 Regular Price $11.99
- Walker Int Pipe Exhaust System Insulator for 2003-2004 Buick Regal 3.8L V6Special Price $8.09 Regular Price $11.99
- Walker Int Pipe Exhaust System Insulator for 2007-2010 Ford Explorer Sport Trac 4.0L V6Special Price $8.09 Regular Price $11.99
- Walker Int Pipe Exhaust System Insulator for 1991-1996 Chevrolet G30 4.3L 5.7L 7.4L V6 V8Special Price $9.51 Regular Price $13.99
- Walker Int Pipe Exhaust System Insulator for 2004-2006 Ford Econoline 5.4L V8Special Price $9.51 Regular Price $13.99
- Walker Int Pipe Exhaust System Hanger for 1980-1986 Chevrolet K10 5.0L 5.7L V8Special Price $10.15 Regular Price $13.99
- 2 pc Walker Int Pipe Exhaust System Insulators for 1993-1998 Toyota T100 3.0L 3.4L V6Special Price $10.91 Regular Price $15.99
- 2 pc Walker Int Pipe Exhaust System Insulators for 1985-1986 Nissan Maxima 3.0L V6Special Price $16.44 Regular Price $22.99
- Fel-Pro Front Exhaust Pipe Flange Gasket for 1989-1990 Toyota Tercel 1.5L L4Special Price $3.27 Regular Price $4.99
- Fel-Pro Front Exhaust Pipe Flange Gasket for 2003-2009 Toyota 4Runner 4.7L V8Special Price $3.35 Regular Price $4.99
- Fel-Pro Front Exhaust Pipe Flange Gasket for 1975-1978 Toyota Celica 2.2L L4Special Price $3.35 Regular Price $4.99
- Fel-Pro Front Exhaust Pipe Flange Gasket for 2004-2010 Toyota Highlander 3.3L V6Special Price $3.35 Regular Price $4.99
- Fel-Pro Front Exhaust Pipe Flange Gasket for 1999-2003 Lexus RX300 3.0L V6Special Price $3.35 Regular Price $4.99
- Fel-Pro Front Exhaust Pipe Flange Gasket for 1998-2003 Toyota Sienna 3.0L V6Special Price $3.35 Regular Price $4.99
- Fel-Pro Front Exhaust Pipe Flange Gasket for 1975-1978 Toyota Corona 2.2L L4Special Price $3.35 Regular Price $4.99
- Fel-Pro Front Exhaust Pipe Flange Gasket for 2001-2003 Toyota Highlander 3.0L V6Special Price $3.35 Regular Price $4.99
- Fel-Pro Front Exhaust Pipe Flange Gasket for 2001-2009 Toyota Sequoia 4.7L V8Special Price $3.35 Regular Price $4.99
- Fel-Pro Front Exhaust Pipe Flange Gasket for 1988-2007 Toyota Land Cruiser 4.0L 4.7L L6 V8Special Price $3.35 Regular Price $4.99
- Fel-Pro Front Exhaust Pipe Flange Gasket for 1993-1994 Toyota T100 3.0L V6Special Price $3.46 Regular Price $4.99
- Fel-Pro Front Exhaust Pipe Flange Gasket for 1995-1997 Toyota Corolla 1.6L 1.8L L4Special Price $3.46 Regular Price $4.99
- Fel-Pro Front Exhaust Pipe Flange Gasket for 2008-2013 Infiniti G37 3.7L V6Special Price $3.56 Regular Price $4.99
- Fel-Pro Front Exhaust Pipe Flange Gasket for 2011-2013 Infiniti M37 3.7L V6Special Price $3.56 Regular Price $4.99
- Fel-Pro Front Exhaust Pipe Flange Gasket for 2013 Infiniti EX37 3.7L V6Special Price $3.56 Regular Price $4.99
- Fel-Pro Front Exhaust Pipe Flange Gasket for 2009-2010 Infiniti M35 3.5L V6Special Price $3.56 Regular Price $4.99
- Fel-Pro Front Exhaust Pipe Flange Gasket for 2014-2016 Infiniti Q70 3.5L 3.7L V6Special Price $3.56 Regular Price $4.99