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 SoundFX Exhaust Muffler for 2004-2011 Ford Ranger 2.3L 3.0L 4.0L L4 V6Special Price $92.46 Regular Price $131.99
- 2 pc Walker SoundFX Exhaust Mufflers for 1968-1970 Plymouth Belvedere 6.3L V8Special Price $128.73 Regular Price $183.99
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- Walker SoundFX Exhaust Muffler for 1988 Dodge B250 3.9L 5.2L 5.9L V6 V8Special Price $69.13 Regular Price $98.99
- Walker SoundFX Exhaust Muffler for 1969-1971 Mercury Cyclone 5.8L V8Special Price $70.55 Regular Price $100.99
- Walker SoundFX Exhaust Muffler for 1973-1974 Oldsmobile 98 7.5L V8Special Price $70.55 Regular Price $100.99
- Walker SoundFX Exhaust Muffler for 1969-1970 Plymouth Belvedere 6.3L V8Special Price $70.55 Regular Price $100.99
- Walker SoundFX Left Exhaust Muffler for 1975-1976 Mercury Grand Marquis 7.5L V8Special Price $70.55 Regular Price $100.99
- Walker Quiet-Flow Exhaust Muffler for 1984-1987 Honda Civic 1.3L 1.5L L4Special Price $71.26 Regular Price $101.99
