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 Int Pipe To Extension Exhaust Pipe Flange Gasket for 1990-1992 Infiniti M30 3.0L V6Special Price $2.25 Regular Price $2.99
- Walker Int Pipe To Extension Exhaust Clamp for 1984-1985 Nissan 200SX 1.8L L4Special Price $3.71 Regular Price $4.99
- Walker Int Pipe To Extension Exhaust Clamp for 2001-2007 Chrysler Town & Country 3.3L V6Special Price $4.25 Regular Price $5.99
- Walker Int Pipe To Extension Exhaust Clamp for 1999-2004 Ford F-350 Super Duty 5.4L 6.8L V10 V8Special Price $7.12 Regular Price $9.99
- Walker Int Pipe To Extension Exhaust Clamp for 1987-1996 Chevrolet P30 4.3L 5.7L V6 V8Special Price $7.12 Regular Price $9.99
- Walker Int Pipe To Extension Exhaust Clamp for 1999-2004 Ford F-250 Super Duty 5.4L 6.8L V10 V8Special Price $7.44 Regular Price $10.99
- Walker Int Pipe To Extension Exhaust Clamp for 1987-1988 GMC P3500 5.7L V8Special Price $7.44 Regular Price $10.99