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 Exhaust Pipe Flange Gasket for 1989 Mazda MPV 3.0L V6Special Price $11.69 Regular Price $16.99 -
2 pc Walker Muffler Assm Exhaust System Insulators for 2001-2003 Mazda Protege 2.0L L4Special Price $16.39 Regular Price $22.99 -
Wells WVE EGR Valve Control Solenoid for 1995-2008 Mazda B2300 B2500 B3000 B4000 Tribute 2.0L 2.3L 2.5L 3.0L 4.0L L4 V6Special Price $28.35 Regular Price $39.99 -
Fel-Pro Exhaust Manifold Gasket Set for 1996-2008 Mazda B3000 3.0L V6Special Price $18.84 Regular Price $26.99 -
4 pc Walker Exhaust System Insulators for 1990-1994 Mazda Protege 1.8L L4Special Price $22.23 Regular Price $31.99 -
MAHLE Exhaust Manifold Gasket for 2001-2004 Mazda Tribute 2.0L L4Special Price $25.29 Regular Price $35.99 -
Fel-Pro Rear Exhaust Pipe Flange Gasket for 2007-2012 Mazda CX-7 2.3L 2.5L L4Special Price $29.06 Regular Price $41.99 -
Walker Exhaust Pipe Spout for 2001-2008 Mazda Tribute 3.0L V6Special Price $45.08 Regular Price $63.99 -
Walker SoundFX Exhaust Muffler for 1994-2003 Mazda B3000 3.0L V6Special Price $68.39 Regular Price $97.99 -
Dorman EGR Valve Control Solenoid for 1995-2003 Mazda Protege 1.5L 1.8L 2.0L L4Special Price $78.70 Regular Price $111.99 -
Walker SoundFX Exhaust Muffler for 2005-2009 Mazda B2300 2.3L L4Special Price $108.36 Regular Price $154.99 -
Walker Muffler Assm To Resonator Assm Exhaust Clamp for 1991-1992 Mazda Navajo 4.0L V6Special Price $9.21 Regular Price $12.99Out of stock -
Walker Muffler To Tail Pipe Exhaust Clamp for 1994-1997 Mazda B3000 3.0L V6Special Price $9.44 Regular Price $12.99Out of stock -
Walker Exhaust Clamp for 1993-1994 Mazda Navajo 4.0L V6Special Price $9.44 Regular Price $12.99Out of stock -
Walker Exhaust Pipe Flange Gasket for 2004-2013 Mazda 3 2.0L 2.3L 2.5L L4Special Price $9.49 Regular Price $13.99 -
Walker Front Converter To Rear Converter Exhaust Pipe Flange Gasket for 2006-2010 Mazda 5 2.3L L4Special Price $9.49 Regular Price $13.99 -
MAHLE EGR Valve Gasket for 1993-2011 Mazda B2300 B2500 B3000 B4000 MPV Navajo Tribute 2.0L 2.3L 2.5L 3.0L 4.0L L4 V6Special Price $9.57 Regular Price $13.99Out of stock -
Walker Muffler To Tail Pipe Exhaust Clamp for 1979-1984 Mazda B2000 2.0L L4Special Price $9.59 Regular Price $13.99 -
Walker Muffler To Tail Pipe Exhaust Clamp for 1974-1976 Mazda B1600 1.6L L4Special Price $9.59 Regular Price $13.99 -
Walker Muffler To Tail Pipe Exhaust Clamp for 1977-1978 Mazda B1800 1.8L L4Special Price $9.59 Regular Price $13.99 -
Fel-Pro EGR Valve Gasket for 2001-2011 Mazda Tribute 3.0L V6Special Price $9.62 Regular Price $13.99 -
Walker Muffler To Tail Pipe Exhaust Clamp for 1994-1997 Mazda B2300 2.3L L4Special Price $9.64 Regular Price $13.99Out of stock -
Walker Muffler To Tail Pipe Exhaust Clamp for 1994-1997 Mazda B4000 4.0L V6Special Price $9.64 Regular Price $13.99Out of stock -
Walker Connector To Muffler Assm Exhaust Clamp for 2001-2004 Mazda Tribute 3.0L V6Special Price $9.64 Regular Price $13.99Out of stock -
Walker Front Pipe Inlet Front Exhaust Pipe Flange Gasket for 2009-2011 Mazda Tribute 2.5L L4Special Price $9.69 Regular Price $13.99 -
Walker Center Converter To Front Pipe Exhaust Pipe Flange Gasket for 2009-2011 Mazda Tribute 3.0L V6Special Price $9.79 Regular Price $13.99 -
Fel-Pro EGR Valve Gasket for 1993-1994 Mazda Navajo 4.0L V6Special Price $9.82 Regular Price $13.99 -
Walker Rear Converter To Resonator Assm Exhaust Pipe Flange Gasket for 1995-1998 Mazda Protege 1.5L L4Special Price $9.92 Regular Price $13.99 -
Walker Exhaust System Insulator for 1983-1987 Mazda 626 2.0L L4Special Price $9.96 Regular Price $13.99 -
Walker Front Pipe Inlet Exhaust Pipe Flange Gasket for 1990-1991 Mazda 929 3.0L V6Special Price $10.12 Regular Price $13.99Out of stock -
Walker Exhaust Pipe Flange Gasket for 1990-1993 Mazda B2200 2.2L L4Special Price $10.12 Regular Price $13.99Out of stock -
Walker Exhaust Pipe Flange Gasket for 1999-2001 Mazda Protege 1.6L 1.8L L4Special Price $10.12 Regular Price $13.99Out of stock -
Walker Converter To Resonator Assm Exhaust Pipe Flange Gasket for 1990-1991 Mazda 929 3.0L V6Special Price $10.12 Regular Price $13.99Out of stock -
Walker Exhaust Pipe Flange Gasket for 1989-1995 Mazda MPV 2.6L 3.0L L4 V6Special Price $10.12 Regular Price $13.99Out of stock




































































