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 Left Exhaust Clamp for 1982-1986 Chevrolet C20 6.2L V8Special Price $3.99 Regular Price $5.99
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- Fel-Pro Left Exhaust Pipe Flange Gasket for 2002-2014 Chevrolet Express 1500 4.3L 5.3L V6 V8Special Price $6.41 Regular Price $8.99
- Fel-Pro Left Exhaust Pipe Flange Gasket for 2004-2006 Chevrolet Avalanche 1500 5.3L V8Special Price $6.41 Regular Price $8.99
- Fel-Pro Left Exhaust Pipe Flange Gasket for 2010-2012 Chevrolet Colorado 5.3L V8Special Price $6.71 Regular Price $9.99
- Walker Right Converter To Muffler Exhaust Clamp for 2004-2006 GMC Sierra 3500 6.0L 8.1L V8Special Price $7.12 Regular Price $9.99
- Fel-Pro Left Exhaust Pipe Flange Gasket for 2010-2016 Subaru Outback 3.6L H6Special Price $17.50 Regular Price $24.99
- Walker Left Exhaust Pipe Flange Gasket for 2006-2010 Infiniti M45 4.5L V8Special Price $3.31 Regular Price $4.99
- Walker Left Exhaust Pipe Flange Gasket for 2006-2010 Infiniti M35 3.5L V6Special Price $3.31 Regular Price $4.99