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 Int Pipe To Muffler Exhaust Clamp for 1980-1981 Pontiac Grand LeMans 3.8L V6Special Price $3.71 Regular Price $4.99
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- Walker Int Pipe To Muffler Exhaust Clamp for 1997-2004 Buick Regal 3.8L V6Special Price $3.71 Regular Price $4.99
- Walker Int Pipe To Muffler Exhaust Clamp for 1986-2006 Ford Ranger 2.0L 2.3L 2.5L 2.9L 3.0L 4.0L L4 V6Special Price $3.71 Regular Price $4.99