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 Rear Converter To Muffler Assm Exhaust Pipe Flange Gasket for 2001-2004 Chevrolet Tracker 2.5L V6Special Price $3.09 Regular Price $4.99
- Dorman Front Left Exhaust Manifold to Cylinder Head Repair Clamp for 1999-2004 GMC Sierra 2500 5.3L 6.0L V8Special Price $52.74 Regular Price $53.82
- Dorman Front Left Exhaust Manifold to Cylinder Head Repair Clamp for 2000-2015 GMC Yukon 4.8L 5.3L 6.0L 6.2L V8Special Price $52.74 Regular Price $53.82
- Walker Rear Converter To Muffler Assm Exhaust Pipe Flange Gasket for 1999-2005 Suzuki Grand Vitara 2.5L 2.7L V6Special Price $3.09 Regular Price $3.99
- Walker Rear Converter To Muffler Assm Exhaust Pipe Flange Gasket for 2002-2003 Suzuki XL-7 2.7L V6Special Price $3.09 Regular Price $3.99
- Walker Rear Converter To Muffler Assm Exhaust Pipe Flange Gasket for 2004 Suzuki Vitara 2.5L V6Special Price $3.09 Regular Price $3.99
- Walker Front Pipe To Converter Center Exhaust Pipe Flange Gasket for 2001-2003 Toyota Highlander 3.0L V6Special Price $5.69 Regular Price $8.99
- Walker Rear Converter To Muffler Assm Exhaust Bolt & Spring for 2003-2004 Toyota 4Runner 4.7L V8Special Price $19.29 Regular Price $27.99
- Walker Rear Converter To Muffler Assm Exhaust Bolt & Spring for 2012-2017 Toyota Prius C 1.5L L4Special Price $19.29 Regular Price $27.99
- Walker Rear Converter To Muffler Assm Exhaust Bolt & Spring for 2006 Lexus IS350 3.5L V6Special Price $19.29 Regular Price $27.99
- Walker Rear Converter To Muffler Assm Exhaust Bolt & Spring for 2003-2004 Lexus GX470 4.7L V8Special Price $19.29 Regular Price $27.99
- Walker Rear Converter To Muffler Assm Exhaust Bolt & Spring for 2006-2013 Lexus IS250 2.5L V6Special Price $19.29 Regular Price $28.99
- Dorman Front Left Exhaust Manifold to Cylinder Head Repair Clamp for 2003-2019 Chevrolet Express 2500 4.8L 5.3L 6.0L V8Special Price $52.74 Regular Price $53.82
- Dorman Front Left Exhaust Manifold to Cylinder Head Repair Clamp for 2005 Workhorse FasTrack FT1261 4.8L V8Special Price $52.74 Regular Price $53.82
- Dorman Front Left Exhaust Manifold to Cylinder Head Repair Clamp for 2003-2019 Chevrolet Express 3500 4.8L 5.3L 6.0L V8Special Price $52.74 Regular Price $53.82
- Dorman Front Left Exhaust Manifold to Cylinder Head Repair Clamp for 2001-2006 GMC Sierra 1500 HD 6.0L V8Special Price $52.74 Regular Price $53.82
- Dorman Front Left Exhaust Manifold to Cylinder Head Repair Clamp for 2007 GMC Sierra 3500 Classic 6.0L V8Special Price $52.74 Regular Price $53.82