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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Walker Front Muffler Assm To Rear Exhaust Clamp for 2006-2009 Chevrolet Trailblazer 4.2L L6Special Price $10.48 Regular Price $14.99 -
Fel-Pro Exhaust Pipe Flange Gasket for 2006-2009 Chevrolet Trailblazer 6.0L V8Special Price $14.31 Regular Price $19.99 -
Walker SoundFX Exhaust Muffler for 2002-2005 Chevrolet Trailblazer 4.2L L6Special Price $89.09 Regular Price $126.99 -
Walker SoundFX Front Exhaust Muffler for 2006-2009 Chevrolet Trailblazer 4.2L L6Special Price $90.91 Regular Price $129.99 -
Fel-Pro EGR Valve Gasket for 2006-2009 Chevrolet Trailblazer 5.3L 6.0L V8Special Price $9.18 Regular Price $12.99 -
Fel-Pro EGR Valve Gasket for 2006-2009 Chevrolet Trailblazer 5.3L 6.0L V8Special Price $9.49 Regular Price $13.99 -
Fel-Pro EGR Valve Gasket for 2006-2009 Chevrolet Trailblazer 5.3L 6.0L V8Special Price $9.65 Regular Price $13.99 -
Walker Muffler To Muffler Assm Exhaust Clamp for 2002-2005 Chevrolet Trailblazer 4.2L L6Special Price $10.70 Regular Price $14.99 -
Fel-Pro EGR Valve Gasket for 2002-2009 Chevrolet Trailblazer 4.2L L6Special Price $12.37 Regular Price $17.99 -
Fel-Pro Left Exhaust Pipe Flange Gasket for 2006-2009 Chevrolet Trailblazer 6.0L V8Special Price $13.31 Regular Price $18.99 -
Fel-Pro Left Exhaust Pipe Flange Gasket for 2006-2009 Chevrolet Trailblazer 5.3L V8Special Price $13.46 Regular Price $18.99 -
Walker Muffler Assm Rear Exhaust System Insulator for 2006-2009 Chevrolet Trailblazer 4.2L L6Special Price $14.86 Regular Price $20.99Out of stock -
Fel-Pro Right Exhaust Pipe Flange Gasket for 2006-2009 Chevrolet Trailblazer 5.3L 6.0L V8Special Price $15.06 Regular Price $21.99 -
Walker Converter To Front Muffler Assm Exhaust Pipe Flange Gasket for 2006-2009 Chevrolet Trailblazer 4.2L L6Special Price $16.15 Regular Price $22.99Out of stock -
Fel-Pro Exhaust Pipe Flange Gasket for 2002-2009 Chevrolet Trailblazer 4.2L L6Special Price $17.03 Regular Price $23.99 -
Walker Left Exhaust Pipe Flange Gasket for 2006-2009 Chevrolet Trailblazer 5.3L 6.0L V8Special Price $17.22 Regular Price $24.99 -
Walker Converter Inlet Exhaust Pipe Flange Gasket for 2002-2009 Chevrolet Trailblazer 4.2L L6Special Price $18.66 Regular Price $26.99 -
Walker Right Exhaust Pipe Flange Gasket for 2006-2009 Chevrolet Trailblazer 5.3L 6.0L V8Special Price $21.74 Regular Price $30.99Out of stock -
Fel-Pro Exhaust Manifold Gasket Set for 2006-2009 Chevrolet Trailblazer 5.3L 6.0L V8Special Price $28.89 Regular Price $40.99 -
Fel-Pro Exhaust Manifold Gasket Set for 2002-2005 Chevrolet Trailblazer 4.2L L6Special Price $29.24 Regular Price $41.99 -
Fel-Pro Exhaust Flange Stud & Nut for 2003-2009 Chevrolet Trailblazer 4.2L 5.3L 6.0L L6 V8Special Price $36.31 Regular Price $51.99 -
Fel-Pro Exhaust Manifold Hardware Kit for 2002-2009 Chevrolet Trailblazer 4.2L 5.3L 6.0L L6 V8Special Price $43.03 Regular Price $60.99 -
Walker SoundFX Exhaust Muffler for 2002-2005 Chevrolet Trailblazer 4.2L L6Special Price $111.01 Regular Price $158.99 -
Walker Quiet-Flow Exhaust Muffler for 2002-2005 Chevrolet Trailblazer 4.2L L6Special Price $158.78 Regular Price $226.99 -
Dorman Exhaust Manifold for 2008-2009 Chevrolet Trailblazer 4.2L L6Special Price $234.23 Regular Price $334.99 -
Dorman Exhaust Manifold for 2008-2009 Chevrolet Trailblazer 4.2L L6Special Price $234.23 Regular Price $334.99












































