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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- 2 pc Walker Resonator Assm Exhaust System Insulators for 2000-2004 Toyota Avalon 3.0L V6Special Price $11.30 Regular Price $15.99
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- Walker Muffler Assm To Tail Pipe Exhaust Clamp for 2005-2009 Mazda B2300 2.3L L4Special Price $3.96 Regular Price $5.99
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- Walker Muffler Assm To Tail Pipe Exhaust Clamp for 1998-2004 Chevrolet S10 4.3L V6Special Price $3.99 Regular Price $5.99
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