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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Delphi EGR Valve for 1996-2002 GMC Yukon 4.8L 5.3L 5.7L 6.0L V8Special Price $179.95 Regular Price $256.99 -
Fel-Pro Right Exhaust Pipe Flange Gasket for 2000-2016 GMC Yukon 4.8L 5.3L 6.0L 6.2L V8Special Price $15.06 Regular Price $21.99 -
Fel-Pro Exhaust Pipe Flange Gasket for 1996-2000 GMC Yukon 5.7L V8Special Price $16.09 Regular Price $22.99 -
Fel-Pro Exhaust Pipe Flange Gasket for 1992-1995 GMC Yukon 5.7L V8Special Price $20.26 Regular Price $28.99 -
Fel-Pro Exhaust Manifold Gasket Set for 1996-2000 GMC Yukon 5.7L V8Special Price $26.44 Regular Price $37.99 -
Walker SoundFX Exhaust Muffler for 1992-1995 GMC Yukon 5.7L V8Special Price $93.32 Regular Price $132.99 -
Dorman Left Exhaust Manifold for 2000-2014 GMC Yukon 4.8L 5.3L 6.0L 6.2L V8Special Price $168.90 Regular Price $240.99 -
Fel-Pro EGR Valve Gasket for 2000-2014 GMC Yukon 4.8L 5.3L 6.0L 6.2L V8Special Price $9.00 Regular Price $12.99 -
Fel-Pro EGR Valve Gasket for 2000-2014 GMC Yukon 4.8L 5.3L 6.0L 6.2L V8Special Price $9.30 Regular Price $12.99 -
Fel-Pro EGR Valve Gasket for 2000-2014 GMC Yukon 4.8L 5.3L 6.0L 6.2L V8Special Price $9.85 Regular Price $13.99 -
Walker Int Pipe Left To Muffler Exhaust Clamp for 2001-2006 GMC Yukon 6.0L V8Special Price $10.48 Regular Price $14.99 -
Walker Converter Left To Int Pipe Left Exhaust Clamp for 2001-2006 GMC Yukon 6.0L V8Special Price $10.70 Regular Price $14.99 -
Walker Int Pipe Rear To Muffler Exhaust Clamp for 2001-2006 GMC Yukon 6.0L V8Special Price $10.70 Regular Price $14.99 -
Fel-Pro Exhaust Pipe Flange Gasket for 1996-2009 GMC Yukon 4.8L 5.7L V8Special Price $11.97 Regular Price $16.99 -
Walker Muffler Assm To Resonator Assm Exhaust Clamp for 2009-2014 GMC Yukon 5.3L V8Special Price $12.18 Regular Price $16.99 -
Walker Extension Pipe To Muffler Exhaust Clamp for 2000-2014 GMC Yukon 4.8L 5.3L V8Special Price $12.18 Regular Price $16.99 -
Walker Int Pipe To Muffler Exhaust Clamp for 1992-2006 GMC Yukon 4.8L 5.3L 5.7L V8Special Price $12.18 Regular Price $16.99 -
Walker Muffler Assm To Tail Pipe Exhaust Clamp for 2000-2006 GMC Yukon 4.8L 5.3L 6.0L V8Special Price $12.18 Regular Price $16.99 -
Walker Converter To Int Pipe Exhaust Clamp for 1992-1994 GMC Yukon 5.7L V8Special Price $12.32 Regular Price $17.99 -
Walker Extension Pipe To Muffler Exhaust Clamp for 2007-2010 GMC Yukon 6.2L V8Special Price $12.32 Regular Price $17.99 -
Walker Muffler Assm To Resonator Assm Exhaust Clamp for 2007-2010 GMC Yukon 6.2L V8Special Price $12.32 Regular Price $17.99 -
Walker Muffler To Tail Pipe Exhaust Clamp for 1992-2006 GMC Yukon 4.8L 5.3L 5.7L V8Special Price $12.43 Regular Price $17.99 -
Walker Muffler To Resonator Assm Exhaust Clamp for 2007-2008 GMC Yukon 5.3L V8Special Price $12.43 Regular Price $17.99 -
Walker Y-Pipe To Converter Exhaust Clamp for 1992-1994 GMC Yukon 5.7L V8Special Price $12.58 Regular Price $17.99 -
Fel-Pro Left Exhaust Pipe Flange Gasket for 2000-2003 GMC Yukon 4.8L 5.3L V8Special Price $13.18 Regular Price $18.99 -
Fel-Pro Left Exhaust Pipe Flange Gasket for 2004-2016 GMC Yukon 4.8L 5.3L 6.0L 6.2L V8Special Price $13.31 Regular Price $18.99 -
2 pc Walker Extension Pipe To Muffler Exhaust Clamps for 1996-1997 GMC Yukon 5.7L V8Special Price $13.39 Regular Price $18.99 -
2 pc Walker H-Pipe To Muffler Exhaust Clamps for 1996-2000 GMC Yukon 5.7L V8Special Price $13.39 Regular Price $18.99 -
Fel-Pro Exhaust Pipe Flange Gasket for 2001-2006 GMC Yukon 6.0L V8Special Price $13.59 Regular Price $18.99 -
Fel-Pro Exhaust Pipe Flange Gasket for 2001-2014 GMC Yukon 6.0L 6.2L V8Special Price $14.02 Regular Price $19.99 -
Walker Extension Pipe Exhaust System Insulator for 1996-2014 GMC Yukon 4.8L 5.3L 5.7L 6.2L V8Special Price $14.56 Regular Price $20.99Out of stock -
Walker H-Pipe Exhaust System Insulator for 1996-2000 GMC Yukon 5.7L V8Special Price $14.56 Regular Price $20.99Out of stock -
Walker Converter Right Exhaust System Insulator for 2001-2006 GMC Yukon 6.0L V8Special Price $14.56 Regular Price $20.99Out of stock -
Walker Converter Left Exhaust System Insulator for 2001-2006 GMC Yukon 6.0L V8Special Price $14.56 Regular Price $20.99Out of stock -
Walker Exhaust System Insulator for 2011-2019 GMC Yukon 5.3L 6.2L V8Special Price $14.86 Regular Price $20.99Out of stock -
Walker Tail Pipe Exhaust System Insulator for 1996-2000 GMC Yukon 5.7L V8Special Price $14.86 Regular Price $20.99Out of stock -
Walker Int Pipe Exhaust System Insulator for 1992-2006 GMC Yukon 4.8L 5.3L 5.7L V8Special Price $14.86 Regular Price $20.99Out of stock -
Walker Muffler Exhaust System Insulator for 1996-2000 GMC Yukon 5.7L V8Special Price $14.86 Regular Price $20.99Out of stock -
Walker Int Pipe Right Exhaust System Insulator for 2001-2006 GMC Yukon 6.0L V8Special Price $14.86 Regular Price $20.99Out of stock -
Fel-Pro Exhaust Manifold Gasket Set for 1992-1995 GMC Yukon 5.7L V8Special Price $16.04 Regular Price $22.99 -
Walker Exhaust Pipe Flange Gasket for 1998-2000 GMC Yukon 5.7L V8Special Price $16.48 Regular Price $23.99Out of stock -
Walker Converter Inlet Right Exhaust Pipe Flange Gasket for 2001-2006 GMC Yukon 6.0L V8Special Price $16.87 Regular Price $23.99 -
Walker Right Exhaust Pipe Flange Gasket for 2015-2017 GMC Yukon 5.3L V8Special Price $16.87 Regular Price $23.99 -
Fel-Pro Exhaust Pipe Flange Gasket for 1992-1997 GMC Yukon 5.7L 6.5L V8Special Price $18.15 Regular Price $25.99 -
Fel-Pro Exhaust Pipe Flange Gasket for 1994-1997 GMC Yukon 6.5L V8Special Price $18.82 Regular Price $26.99Out of stock



































































