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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- 3 pc Walker Muffler Assm Rear Exhaust System Insulators for 2001-2002 Acura MDX 3.5L V6Special Price $25.12 Regular Price $35.99
- 3 pc Walker Muffler Assm Rear Exhaust System Insulators for 2003-2004 Honda Pilot 3.5L V6Special Price $25.80 Regular Price $36.99