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 Front Pipe To Int Pipe Exhaust Clamp for 1980-1984 Oldsmobile Cutlass Calais 5.7L V8Special Price $3.99 Regular Price $5.99
- Walker Front Pipe To Int Pipe Exhaust Clamp for 1980-1981 Oldsmobile Cutlass 5.7L V8Special Price $3.99 Regular Price $5.99
- Walker Front Pipe To Int Pipe Exhaust Clamp for 1983-1984 GMC Caballero 5.7L V8Special Price $4.25 Regular Price $5.99
- Walker Front Pipe To Int Pipe Exhaust Pipe Flange Gasket for 1991-1996 Nissan Sentra 1.6L L4Special Price $7.44 Regular Price $10.99
- Walker Muffler Assm To Extension Pipe Exhaust Clamp for 1990-1992 Volkswagen Jetta 1.8L L4Special Price $3.96 Regular Price $5.99
- Walker Front Pipe To Int Pipe Exhaust Clamp for 1980-1985 Oldsmobile Cutlass Salon 5.7L V8Special Price $3.99 Regular Price $5.99
- Walker Front Pipe To Int Pipe Exhaust Clamp for 1981-1984 Pontiac Bonneville 5.7L V8Special Price $3.99 Regular Price $5.99
- Walker Muffler Assm To Extension Pipe Exhaust Clamp for 2006-2010 Mercury Mountaineer 4.6L V8Special Price $3.99 Regular Price $5.99
- Walker Front Pipe To Int Pipe Exhaust Clamp for 1980-1985 Chevrolet C30 4.8L L6Special Price $4.23 Regular Price $5.99
- Walker Front Pipe To Int Pipe Exhaust Clamp for 1979-1983 GMC P2500 4.8L L6Special Price $4.23 Regular Price $5.99
- Walker Front Pipe To Int Pipe Exhaust Clamp for 1982-1984 Chevrolet Monte Carlo 5.7L V8Special Price $4.25 Regular Price $5.99
- Walker Front Pipe To Int Pipe Exhaust Clamp for 1981 Buick Century 5.7L V8Special Price $4.25 Regular Price $5.99
- Walker Front Pipe To Int Pipe Exhaust Clamp for 1982-1983 Chevrolet Malibu 5.7L V8Special Price $4.25 Regular Price $5.99
- Walker Front Pipe To Int Pipe Exhaust Clamp for 1980-1985 Oldsmobile Cutlass Supreme 5.7L V8Special Price $4.25 Regular Price $5.99
- Walker Muffler Assm To Extension Pipe Exhaust Clamp for 2002-2005 Ford Explorer 4.0L 4.6L V6 V8Special Price $4.25 Regular Price $5.99
- Walker Front Pipe To Int Pipe Exhaust Clamp for 1980-1985 GMC C2500 4.8L L6Special Price $4.49 Regular Price $5.99
- Walker Front Pipe To Int Pipe Exhaust Clamp for 1980-1985 GMC C3500 4.8L L6Special Price $4.49 Regular Price $5.99
- Walker Front Pipe To Int Pipe Exhaust Pipe Flange Gasket for 1990-1992 Ford Probe 3.0L V6Special Price $5.92 Regular Price $7.99
- Walker Front Pipe To Int Pipe Exhaust Pipe Flange Gasket for 1984-1986 Honda Civic 1.3L 1.5L L4Special Price $7.44 Regular Price $10.99
- Walker Muffler Assm To Extension Pipe Exhaust Clamp for 1990-1996 Chevrolet P30 7.4L V8Special Price $7.44 Regular Price $10.99
- Walker Front Pipe To Int Pipe Exhaust Pipe Flange Gasket for 1995-1996 Nissan 200SX 1.6L L4Special Price $7.44 Regular Price $10.99
- Walker Front Pipe To Int Pipe Exhaust Bolt & Spring for 1990-1993 Acura Integra 1.8L L4Special Price $12.32 Regular Price $17.99
- Walker Front Pipe To Int Pipe Exhaust Bolt & Spring for 1984-1991 Honda Civic 1.3L 1.5L L4Special Price $12.32 Regular Price $17.99
- Walker Front Pipe To Int Pipe Exhaust Pipe Flange Gasket for 2012-2015 Honda Civic 1.8L L4Special Price $12.52 Regular Price $17.99
- Walker Front Pipe To Int Pipe Exhaust Bolt & Spring for 1995-1996 Nissan 200SX 1.6L L4Special Price $19.44 Regular Price $27.99
- Walker Front Pipe To Int Pipe Exhaust Bolt & Spring for 1991-1993 Nissan NX 1.6L L4Special Price $20.00 Regular Price $28.99