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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2 pc Walker Exhaust Pipe Spouts for 1992-1995 BMW 525i 2.5L L6Special Price $36.48 Regular Price $52.99
- Walker Exhaust Flange for 1967-1968 Chevrolet G20 Van 4.6L 5.0L V8Special Price $9.90 Regular Price $14.99
- Walker Converter To Int Pipe Exhaust Flange for 1984-1986 Ford LTD 3.8L V6Special Price $14.80 Regular Price $21.99
- Walker Exhaust Pipe Spout for 1982-1999 Nissan Maxima 2.4L 2.8L 3.0L L6 V6Special Price $18.84 Regular Price $27.99
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- Delphi EGR Valve for 1996-1999 Chevrolet K1500 4.3L 5.0L 5.7L V6 V8Special Price $159.18 Regular Price $162.43
- Delphi EGR Valve for 1999-2002 Chevrolet Silverado 2500 5.3L 5.7L 6.0L V8Special Price $159.18 Regular Price $162.43
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- Walker Exhaust Flange for 1966 Chevrolet Caprice 5.3L 6.5L V8Special Price $9.90 Regular Price $13.99
- Walker Exhaust Flange for 1960-1966 Chevrolet C20 Pickup 4.6L 5.7L V8Special Price $9.54 Regular Price $13.99
- Walker Exhaust Flange for 1960-1966 Chevrolet K20 Pickup 4.6L V8Special Price $9.54 Regular Price $13.99
- Walker Exhaust Flange for 1965-1966 Pontiac Beaumont 5.3L V8Special Price $9.90 Regular Price $13.99
- Walker Right Exhaust Flange for 1965-1966 Chevrolet Malibu 5.3L V8Special Price $9.90 Regular Price $13.99
- Walker Right Exhaust Flange for 1965-1966 Chevrolet Biscayne 5.3L 6.5L V8Special Price $9.54 Regular Price $13.99
- Walker Exhaust Flange for 1961-1963 GMC 2500 Series 5.0L V6Special Price $9.54 Regular Price $14.99
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- Walker Right Exhaust Flange for 1965-1966 Chevrolet El Camino 5.3L V8Special Price $9.54 Regular Price $14.99
- Walker Exhaust Flange for 1959-1960 Chevrolet El Camino 4.6L 5.7L V8Special Price $9.54 Regular Price $14.99
- Walker Exhaust Flange for 1958-1964 Chevrolet Biscayne 4.6L 5.3L 5.7L 6.7L V8Special Price $9.54 Regular Price $14.99
- Walker Exhaust Flange for 1958-1966 Chevrolet Impala 4.6L 5.3L 5.4L 5.7L 6.5L 6.7L 7.0L V8Special Price $9.54 Regular Price $14.99
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- Walker Exhaust Flange for 1983-1988 Ford Thunderbird 3.8L 5.0L V6 V8Special Price $15.27 Regular Price $21.99
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- Walker Exhaust Flange for 1983-1988 Mercury Cougar 3.8L 5.0L V6 V8Special Price $15.27 Regular Price $21.99
- Walker Converter To Int Pipe Exhaust Flange for 1987-1988 Ford Thunderbird 2.3L L4Special Price $14.80 Regular Price $21.99
- Walker Converter To Int Pipe Exhaust Flange for 1984-1986 Mercury Marquis 3.8L V6Special Price $14.80 Regular Price $21.99
