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 Left Exhaust Pipe Flange Gasket for 2006-2010 Infiniti M45 4.5L V8Special Price $3.31 Regular Price $4.99
- Walker Left Exhaust Clamp for 1970-1972 Buick Skylark 5.7L V8Special Price $3.96 Regular Price $5.99
- Walker Left Exhaust Clamp for 2004-2006 Dodge Durango 5.7L V8Special Price $4.25 Regular Price $5.99
- Fel-Pro Left Exhaust Pipe Flange Gasket for 2006-2009 Chevrolet Trailblazer 5.3L V8Special Price $6.01 Regular Price $8.99
- Fel-Pro Left Exhaust Pipe Flange Gasket for 1999-2000 GMC Sierra 2500 5.3L V8Special Price $6.01 Regular Price $8.99
- Fel-Pro Left Exhaust Pipe Flange Gasket for 2004-2006 Chevrolet Avalanche 1500 5.3L V8Special Price $6.41 Regular Price $8.99
- Fel-Pro Left Exhaust Pipe Flange Gasket for 2002-2014 GMC Savana 1500 4.3L 5.3L V6 V8Special Price $6.71 Regular Price $9.99
- Fel-Pro Left Exhaust Pipe Flange Gasket for 2007-2013 GMC Yukon XL 2500 6.0L V8Special Price $6.71 Regular Price $9.99
- Fel-Pro Left Exhaust Pipe Flange Gasket for 2007-2013 Chevrolet Avalanche 5.3L 6.0L V8Special Price $6.71 Regular Price $9.99
- Walker SoundFX Left Exhaust Muffler for 1982-1991 GMC K3500 6.2L V8Special Price $73.73 Regular Price $104.99
- Walker Left Exhaust Pipe Flange Gasket for 2006-2010 Infiniti M35 3.5L V6Special Price $3.31 Regular Price $4.99
- Walker Left Exhaust Pipe Flange Gasket for 1998-2007 Lexus LX470 4.7L V8Special Price $3.59 Regular Price $4.99
- Walker Left Exhaust Clamp for 1967-1972 Oldsmobile Cutlass Supreme 5.4L 5.7L 7.5L V8Special Price $3.71 Regular Price $4.99
- Walker Left Exhaust Clamp for 1965-1972 Oldsmobile Cutlass 5.4L 5.7L 6.6L 7.5L V8Special Price $3.71 Regular Price $4.99
- Walker Int Pipe To Resonator Exhaust Clamp for 1984-1987 Audi 4000 1.8L 2.2L L4 L5Special Price $3.71 Regular Price $4.99
- Walker Left Exhaust Clamp for 2007-2015 Nissan Armada 5.6L V8Special Price $3.71 Regular Price $4.99
- Walker Left Exhaust Clamp for 2010-2013 Mazda 3 2.3L 2.5L L4Special Price $3.71 Regular Price $4.99
- Walker Int Pipe To Resonator Exhaust Clamp for 1985-1986 Audi 4000 Quattro 2.2L L5Special Price $3.71 Regular Price $4.99