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.
Filter By Part Details
- Walker Front Converter To Rear Converter Exhaust Pipe Flange Gasket for 2000-2003 Ford Econoline 5.4L V8Special Price $11.99 Regular Price $16.99
- Walker Front Converter To Rear Converter Exhaust Bolt & Spring for 2007-2012 Acura RDX 2.3L L4Special Price $12.32 Regular Price $17.99
- Walker Front Converter To Rear Converter Exhaust Bolt & Spring for 2007-2017 Jeep Compass 2.4L L4Special Price $12.32 Regular Price $17.99
- Walker Front Converter To Rear Converter Exhaust Bolt & Spring for 2001-2011 Honda Civic 1.3L 1.7L L4Special Price $12.75 Regular Price $17.99
- Walker Front Converter To Rear Converter Exhaust Pipe Flange Gasket for 2006-2013 Subaru Forester 2.5L H4Special Price $12.95 Regular Price $17.99
- Walker Front Converter To Rear Converter Exhaust Pipe Flange Gasket for 2006-2012 Subaru Legacy 2.5L H4Special Price $12.95 Regular Price $17.99
- Walker Front Converter To Rear Converter Exhaust Pipe Flange Gasket for 2006-2011 Subaru Impreza 2.5L H4Special Price $12.95 Regular Price $17.99
- Walker Front Converter To Rear Converter Exhaust Pipe Flange Gasket for 2006-2017 Subaru Outback 2.5L H4Special Price $12.95 Regular Price $17.99
- Walker Front Converter To Rear Converter Exhaust Pipe Flange Gasket for 2012-2015 Chevrolet Captiva Sport 2.4L L4Special Price $13.08 Regular Price $18.99
- Walker Front Converter To Rear Converter Exhaust Pipe Flange Gasket for 2010-2017 GMC Terrain 2.4L L4Special Price $13.52 Regular Price $18.99
- Walker Front Converter To Rear Converter Exhaust Bolt & Spring for 2002-2006 Nissan Altima 2.5L L4Special Price $19.44 Regular Price $27.99
- Walker Front Converter To Rear Converter Exhaust Bolt & Spring for 2008-2014 Scion xD 1.8L L4Special Price $20.00 Regular Price $28.99