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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MotoRad Diesel Emissions Fluid Filler Cap for 2010-2014 Chevrolet Silverado 2500 HD 6.6L V8Special Price $10.63 Regular Price $14.99 -
Walker Muffler To Tail Pipe Exhaust Clamp for 2007-2017 Chevrolet Silverado 2500 HD 6.0L V8Special Price $13.41 Regular Price $18.99 -
Fel-Pro Rear Exhaust Pipe Flange Gasket for 2001-2006 Chevrolet Silverado 2500 HD 8.1L V8Special Price $17.72 Regular Price $24.99 -
Dorman Rear Right Exhaust Manifold to Cylinder Head Repair Clamp for 2001-2009 Chevrolet Silverado 2500 HD 6.0L V8Special Price $62.62 Regular Price $88.99 -
Dorman Left Exhaust Manifold for 2001-2016 Chevrolet Silverado 2500 HD 6.0L V8Special Price $172.35 Regular Price $245.99 -
Gates Diesel Emissions Fluid Filler Cap for 2010-2016 Chevrolet Silverado 2500 HD 6.6L V8Special Price $9.04 Regular Price $12.99Out of stock -
Fel-Pro EGR Valve Gasket for 2001-2006 Chevrolet Silverado 2500 HD 6.0L V8Special Price $9.18 Regular Price $12.99 -
Fel-Pro EGR Valve Gasket for 2001-2006 Chevrolet Silverado 2500 HD 6.0L V8Special Price $9.30 Regular Price $12.99 -
Fel-Pro EGR Valve Gasket for 2001-2006 Chevrolet Silverado 2500 HD 6.0L V8Special Price $9.85 Regular Price $13.99 -
Fel-Pro EGR Valve Gasket for 2001-2006 Chevrolet Silverado 2500 HD 8.1L V8Special Price $10.08 Regular Price $13.99 -
Walker Extension Pipe To Muffler Exhaust Clamp for 2001-2006 Chevrolet Silverado 2500 HD 6.0L 8.1L V8Special Price $10.70 Regular Price $14.99 -
Walker Right Converter To Muffler Exhaust Clamp for 2001-2006 Chevrolet Silverado 2500 HD 6.0L 8.1L V8Special Price $10.70 Regular Price $14.99 -
Fel-Pro Right EGR Valve Gasket for 2006-2010 Chevrolet Silverado 2500 HD 6.6L V8Special Price $11.75 Regular Price $16.99 -
Walker Muffler To Tail Pipe Exhaust Clamp for 2001-2006 Chevrolet Silverado 2500 HD 6.0L 6.6L 8.1L V8Special Price $12.32 Regular Price $17.99 -
Walker Right Converter To Muffler Exhaust Clamp for 2001-2006 Chevrolet Silverado 2500 HD 6.0L 8.1L V8Special Price $12.32 Regular Price $17.99 -
Walker Extension Pipe To Muffler Exhaust Clamp for 2001-2006 Chevrolet Silverado 2500 HD 6.0L 6.6L 8.1L V8Special Price $12.32 Regular Price $17.99 -
Walker Muffler Assm To Tail Pipe Exhaust Clamp for 2003-2006 Chevrolet Silverado 2500 HD 6.0L 8.1L V8Special Price $12.32 Regular Price $17.99 -
Walker Converter Rear To Muffler Exhaust Clamp for 2001-2002 Chevrolet Silverado 2500 HD 6.0L 8.1L V8Special Price $12.58 Regular Price $17.99 -
Walker Converter Left To Extension Pipe Exhaust Clamp for 2001-2006 Chevrolet Silverado 2500 HD 6.0L 8.1L V8Special Price $12.58 Regular Price $17.99 -
Fel-Pro Exhaust Pipe Flange Gasket for 2001-2016 Chevrolet Silverado 2500 HD 6.6L V8Special Price $13.10 Regular Price $18.99 -
Fel-Pro Left Exhaust Pipe Flange Gasket for 2007-2019 Chevrolet Silverado 2500 HD 6.0L V8Special Price $13.31 Regular Price $18.99 -
Fel-Pro Exhaust Pipe Flange Gasket for 2001-2006 Chevrolet Silverado 2500 HD 6.0L 8.1L V8Special Price $13.31 Regular Price $18.99 -
Walker Extension Pipe To Muffler Exhaust Clamp for 2007-2017 Chevrolet Silverado 2500 HD 6.0L V8Special Price $13.41 Regular Price $18.99 -
Fel-Pro Exhaust Pipe Flange Gasket for 2001-2016 Chevrolet Silverado 2500 HD 6.0L 8.1L V8Special Price $14.02 Regular Price $19.99 -
Walker Converter Right Exhaust System Insulator for 2001-2006 Chevrolet Silverado 2500 HD 6.0L 8.1L V8Special Price $14.56 Regular Price $20.99Out of stock -
Walker Exhaust System Insulator for 2007-2010 Chevrolet Silverado 2500 HD 6.6L V8Special Price $14.56 Regular Price $20.99Out of stock -
Fel-Pro Left EGR Valve Gasket for 2006-2010 Chevrolet Silverado 2500 HD 6.6L V8Special Price $14.58 Regular Price $20.99 -
Fel-Pro EGR Valve Gasket for 2004-2010 Chevrolet Silverado 2500 HD 6.6L V8Special Price $14.71 Regular Price $20.99 -
Walker Converter Exhaust System Insulator for 2001-2006 Chevrolet Silverado 2500 HD 6.6L V8Special Price $14.86 Regular Price $20.99Out of stock -
Walker Tail Pipe Exhaust System Insulator for 2007-2010 Chevrolet Silverado 2500 HD 6.0L V8Special Price $14.86 Regular Price $20.99Out of stock -
Walker Converter Left Exhaust System Insulator for 2001-2006 Chevrolet Silverado 2500 HD 6.0L 8.1L V8Special Price $14.86 Regular Price $20.99Out of stock -
Walker Extension Pipe Exhaust System Insulator for 2007-2017 Chevrolet Silverado 2500 HD 6.0L V8Special Price $14.86 Regular Price $20.99Out of stock -
Walker Exhaust Pipe Flange Gasket for 2007-2010 Chevrolet Silverado 2500 HD 6.6L V8Special Price $16.02 Regular Price $22.99Out of stock -
Walker Front Pipe To Converter Right Exhaust Pipe Flange Gasket for 2001-2006 Chevrolet Silverado 2500 HD 6.0L 8.1L V8Special Price $16.48 Regular Price $23.99Out of stock -
Walker Front Pipe Inlet Right Exhaust Pipe Flange Gasket for 2001-2002 Chevrolet Silverado 2500 HD 6.0L 8.1L V8Special Price $16.87 Regular Price $23.99 -
Walker Front Pipe Inlet Exhaust Pipe Flange Gasket for 2001-2006 Chevrolet Silverado 2500 HD 6.0L 8.1L V8Special Price $17.22 Regular Price $24.99 -
Fel-Pro Exhaust Pipe Flange Gasket for 2004-2010 Chevrolet Silverado 2500 HD 6.6L V8Special Price $18.92 Regular Price $26.99 -
Fel-Pro Exhaust Pipe Flange Gasket for 2011-2016 Chevrolet Silverado 2500 HD 6.6L V8Special Price $19.31 Regular Price $27.99 -
Walker Converter Inlet Left Exhaust Pipe Flange Gasket for 2001-2017 Chevrolet Silverado 2500 HD 6.0L 8.1L V8Special Price $19.79 Regular Price $27.99Out of stock -
Fel-Pro Right Exhaust Pipe Flange Gasket for 2007-2019 Chevrolet Silverado 2500 HD 6.0L V8Special Price $19.83 Regular Price $27.99 -
2 pc Walker Exhaust System Insulators for 2007-2010 Chevrolet Silverado 2500 HD 6.6L V8Special Price $21.76 Regular Price $30.99Out of stock -
2 pc Walker Tail Pipe Exhaust System Insulators for 2001-2006 Chevrolet Silverado 2500 HD 6.0L 6.6L 8.1L V8Special Price $21.76 Regular Price $30.99Out of stock -
Walker Exhaust Bolt for 2007 Chevrolet Silverado 2500 HD 6.6L V8Special Price $23.12 Regular Price $32.99 -
Fel-Pro Exhaust Manifold Gasket Set for 2001-2016 Chevrolet Silverado 2500 HD 6.0L V8Special Price $28.89 Regular Price $40.99 -
3 pc Walker Tail Pipe Exhaust System Insulators for 2011-2017 Chevrolet Silverado 2500 HD 6.0L V8Special Price $28.96 Regular Price $40.99Out of stock -
Fel-Pro Exhaust Manifold Gasket Set for 2001-2006 Chevrolet Silverado 2500 HD 8.1L V8Special Price $30.06 Regular Price $42.99 -
Fel-Pro Exhaust Flange Stud & Nut for 2001-2016 Chevrolet Silverado 2500 HD 6.0L 8.1L V8Special Price $37.05 Regular Price $52.99 -
Fel-Pro Exhaust Manifold Hardware Kit for 2001-2016 Chevrolet Silverado 2500 HD 6.0L V8Special Price $42.16 Regular Price $59.99




































































