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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- Fel-Pro MS 9275 B Exhaust Manifold Gasket SetSpecial Price $9.29 Regular Price $12.99
- Walker Left Exhaust Clamp for 1988 Chevrolet R30 6.2L V8Special Price $3.99 Regular Price $5.99
- Walker Left Exhaust Clamp for 1976-1978 Chevrolet K5 Blazer 5.7L 6.6L V8Special Price $4.23 Regular Price $5.99
- Walker Left Exhaust Clamp for 1984-1986 GMC C2500 6.2L V8Special Price $4.49 Regular Price $5.99
- Walker Left Exhaust Clamp for 1978-1986 Chevrolet C10 5.7L 6.2L V8Special Price $4.49 Regular Price $5.99
- Fel-Pro Left Exhaust Pipe Flange Gasket for 2000-2003 GMC Yukon XL 1500 5.3L V8Special Price $6.01 Regular Price $8.99
- Fel-Pro Left Exhaust Pipe Flange Gasket for 2005-2009 GMC Envoy 5.3L V8Special Price $6.01 Regular Price $8.99
- Fel-Pro Left Exhaust Pipe Flange Gasket for 2005 GMC Envoy XUV 5.3L V8Special Price $6.30 Regular Price $8.99
- Fel-Pro Left Exhaust Pipe Flange Gasket for 2000-2003 Chevrolet Tahoe 4.8L 5.3L V8Special Price $6.30 Regular Price $8.99
- Fel-Pro Left Exhaust Pipe Flange Gasket for 2004-2014 Chevrolet Suburban 1500 5.3L 6.0L V8Special Price $6.71 Regular Price $9.99
- Fel-Pro Left Exhaust Pipe Flange Gasket for 2004 GMC Envoy XL 5.3L V8Special Price $6.71 Regular Price $9.99
- Fel-Pro MS 9812 Exhaust Manifold Gasket SetSpecial Price $17.57 Regular Price $24.99
- Fel-Pro MS 90206 Exhaust Manifold Gasket SetSpecial Price $20.52 Regular Price $28.99
- Fel-Pro MS 93489 Exhaust Manifold Gasket SetSpecial Price $37.46 Regular Price $53.99
- 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 Left Exhaust Muffler for 1987 Chevrolet R30 6.2L V8Special Price $73.73 Regular Price $104.99