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 Exhaust System Insulators for 2000-2005 Hyundai Accent 1.5L 1.6L L4Special Price $16.82 Regular Price $23.99
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- 3 pc Walker Muffler Exhaust System Insulators for 2009-2014 Nissan Cube 1.8L L4Special Price $17.33 Regular Price $24.99
- 3 pc Walker Exhaust System Insulators for 1989-1991 Chevrolet Sprint 1.0L L3Special Price $17.33 Regular Price $24.99
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