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.
Filter By Part Details
-
Walker SoundFX Exhaust Muffler for 2004-2011 Ford Ranger 2.3L 3.0L 4.0L L4 V6Special Price $92.46 Regular Price $131.99
- Walker Quiet-Flow Left Exhaust Muffler for 1977-1981 Chevrolet Camaro 5.0L 5.7L V8Special Price $63.46 Regular Price $90.99
- Walker SoundFX Exhaust Muffler for 1979-1987 GMC Caballero 3.8L 4.3L 5.0L V6 V8Special Price $72.71 Regular Price $103.99
- Walker SoundFX Left Exhaust Muffler for 1987 Chevrolet R30 6.2L V8Special Price $73.73 Regular Price $104.99
-
- Walker SoundFX Exhaust Muffler for 2005-2009 Mazda B2300 2.3L L4Special Price $94.35 Regular Price $134.99
-
- 2 pc Walker SoundFX Exhaust Mufflers for 1969-1971 Ford Torino 5.8L 6.4L 7.0L V8Special Price $126.15 Regular Price $179.99
- 2 pc Walker SoundFX Exhaust Mufflers for 1975-1979 Chrysler Cordoba 5.9L 6.6L V8Special Price $126.15 Regular Price $179.99
-
