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 Converter Inlet Exhaust Bolt & Spring for 2003-2019 Toyota Corolla 1.8L L4Special Price $19.44 Regular Price $27.99
- Walker Left Exhaust Clamp for 2003-2006 Hummer H2 6.0L V8Special Price $4.49 Regular Price $5.99
- Walker Left Exhaust Pipe Flange Gasket for 2008-2011 Cadillac STS 3.6L V6Special Price $5.92 Regular Price $7.99
- 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 2007 GMC Sierra 1500 Classic 5.3L V8Special Price $6.30 Regular Price $8.99
- Fel-Pro Left Exhaust Pipe Flange Gasket for 2007-2013 Chevrolet Suburban 2500 6.0L V8Special Price $6.41 Regular Price $8.99
- Fel-Pro Left Exhaust Pipe Flange Gasket for 2004-2016 Chevrolet Express 3500 4.8L 6.0L V8Special Price $6.41 Regular Price $8.99
- Fel-Pro Left Exhaust Pipe Flange Gasket for 2004-2016 Cadillac Escalade 5.3L 6.0L 6.2L 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 Converter Inlet Exhaust Pipe Flange Gasket for 2004-2006 Scion xA 1.5L L4Special Price $10.15 Regular Price $13.99
- Walker Converter Inlet Exhaust Pipe Flange Gasket for 2000-2004 Ford Focus 2.0L L4Special Price $10.95 Regular Price $15.99
- Walker Converter Inlet Exhaust Pipe Flange Gasket for 2003-2011 Honda Element 2.4L L4Special Price $11.82 Regular Price $16.99
- Walker Converter Inlet Exhaust Pipe Flange Gasket for 2002-2004 Oldsmobile Silhouette 3.4L V6Special Price $15.18 Regular Price $21.99
- Walker Converter Inlet Exhaust Pipe Flange Gasket for 1997-1999 Chevrolet Monte Carlo 3.1L V6Special Price $15.18 Regular Price $21.99
- Fel-Pro Left Exhaust Pipe Flange Gasket for 2010-2016 Subaru Legacy 3.6L H6Special Price $16.98 Regular Price $23.99
- Walker SoundFX Left Exhaust Muffler for 1982-1986 Chevrolet K10 6.2L V8Special Price $73.73 Regular Price $104.99
- Walker Left Exhaust Pipe Flange Gasket for 2006-2010 Infiniti M45 4.5L V8Special Price $3.31 Regular Price $4.99
- 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 Left Exhaust Clamp for 2010-2013 Mazda 3 2.3L 2.5L L4Special 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