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
- 2 pc Walker Muffler Assm Exhaust System Insulators for 2003-2019 Toyota Corolla 1.8L L4Special Price $11.30 Regular Price $15.99
- 2 pc Walker Exhaust Pipe Flange Gaskets for 1991-1995 Isuzu Rodeo 3.1L 3.2L V6Special Price $10.08 Regular Price $13.99
- 2 pc Walker Converter Rear Exhaust System Insulators for 2001-2016 Kia Optima 2.4L 2.5L 2.7L L4 V6Special Price $10.91 Regular Price $15.99
- 2 pc Walker Exhaust Clamps for 1965-1969 Pontiac Catalina 6.4L 6.6L 6.9L 7.0L V8Special Price $14.67 Regular Price $20.99
- 2 pc Walker Y-Pipe Exhaust System Insulators for 2000-2005 Chevrolet Monte Carlo 3.8L V6Special Price $16.95 Regular Price $23.99
- 2 pc Walker Exhaust System Insulators for 1995-2010 Dodge Ram 2500 5.2L 5.9L 6.7L L6 V8Special Price $16.95 Regular Price $23.99
- 3 pc Walker Exhaust System Insulators for 2010-2013 Toyota Tundra 4.6L 5.7L V8Special Price $17.33 Regular Price $24.99
- 2 pc Walker Exhaust Pipe Spouts for 1992-1995 BMW 525i 2.5L L6Special Price $37.45 Regular Price $52.99
- 2 pc Walker SoundFX Exhaust Mufflers for 1967-1976 Dodge Charger 5.6L 5.9L 6.3L 6.6L 7.0L 7.2L V8Special Price $126.15 Regular Price $179.99
- 2 pc Walker SoundFX Exhaust Mufflers for 1968-1970 Plymouth Belvedere 6.3L V8Special Price $128.73 Regular Price $183.99
- 2 pc Walker Exhaust Clamps for 1995-2002 Lincoln Continental 4.6L V8Special Price $8.35 Regular Price $11.99
- 2 pc Walker Muffler Assm Exhaust System Insulators for 2004-2006 Lexus ES330 3.3L V6Special Price $10.91 Regular Price $15.99
- 2 pc Walker Resonator Assm Exhaust System Insulators for 2000-2005 Toyota Celica 1.8L L4Special Price $11.30 Regular Price $15.99
- 2 pc Walker Converter To Resonator Assm Exhaust Pipe Flange Gaskets for 1990-1995 Nissan 300ZX 3.0L V6Special Price $12.64 Regular Price $17.99
- 2 pc Walker Exhaust Clamps for 1980 Dodge CB300 5.9L V8Special Price $14.21 Regular Price $19.99
- 2 pc Walker Int Pipe Exhaust System Insulators for 2000-2013 Chevrolet Impala 3.4L 3.6L 3.8L 3.9L 5.3L V6 V8Special Price $16.44 Regular Price $22.99
- 2 pc Walker Muffler Assm Exhaust System Insulators for 1994-1999 Volkswagen Jetta 2.8L V6Special Price $16.44 Regular Price $22.99
- 2 pc Walker Muffler Assm Left Exhaust System Insulators for 2014-2016 Chevrolet Impala Limited 3.6L V6Special Price $16.44 Regular Price $22.99
- 2 pc Walker Muffler Exhaust System Insulators for 1996-2000 Plymouth Voyager 3.0L 3.3L 3.8L V6Special Price $16.44 Regular Price $22.99
- 2 pc Walker Muffler Exhaust System Insulators for 2004-2011 Ford Ranger 2.3L L4Special Price $16.95 Regular Price $23.99
- 2 pc Walker Front Pipe Left Exhaust System Hangers for 1975-1978 GMC C35 7.4L V8Special Price $20.48 Regular Price $28.99
- 2 pc Walker Front Pipe Left Exhaust System Hangers for 1975-1985 Chevrolet C30 7.4L V8Special Price $21.06 Regular Price $29.99
- 2 pc Walker Exhaust Pipe Flange Gaskets for 2004-2006 Infiniti QX56 5.6L V8Special Price $4.97 Regular Price $6.99
- 2 pc Walker Exhaust Pipe Flange Gaskets for 1995-1998 Nissan 240SX 2.4L L4Special Price $4.97 Regular Price $6.99
- 2 pc Walker Exhaust Pipe Flange Gaskets for 2005-2015 Nissan Armada 5.6L V8Special Price $4.97 Regular Price $6.99
- 2 pc Walker Converter Rear Left To Int Pipe Exhaust Pipe Flange Gaskets for 2007-2015 Nissan Titan 5.6L V8Special Price $4.97 Regular Price $6.99
- 2 pc Walker Exhaust Pipe Flange Gaskets for 2008-2012 Nissan Pathfinder 5.6L V8Special Price $4.97 Regular Price $6.99
- 2 pc Walker Exhaust Pipe Flange Gaskets for 2004-2006 Nissan Titan 5.6L V8Special Price $5.24 Regular Price $6.99
- 2 pc Walker Exhaust Pipe Flange Gaskets for 2010-2013 Buick LaCrosse 3.0L 3.6L V6Special Price $5.79 Regular Price $7.99