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 Resonator Assm To Y-Pipe Rear Exhaust Clamp for 2007-2008 GMC Acadia 3.6L V6Special Price $3.99 Regular Price $5.99
- Walker Rear Converter To Resonator Exhaust Clamp for 2008-2012 Chevrolet Malibu 2.4L 3.5L 3.6L L4 V6Special Price $4.23 Regular Price $5.99
- Walker Rear Converter To Resonator Exhaust Clamp for 2008-2009 Saturn Aura 2.4L 3.5L L4 V6Special Price $4.23 Regular Price $5.99
- Walker Resonator Assm To Y-Pipe Rear Exhaust Clamp for 2007-2008 Saturn Outlook 3.6L V6Special Price $4.25 Regular Price $5.99
- Walker Rear Converter To Resonator Exhaust Bolt & Spring for 2009-2016 Subaru Forester 2.5L H4Special Price $12.32 Regular Price $17.99
- Walker Rear Converter To Resonator Exhaust Bolt & Spring for 2010-2017 Subaru Outback 2.5L H4Special Price $12.32 Regular Price $17.99
- Walker Rear Converter To Resonator Exhaust Bolt & Spring for 2010-2017 Subaru Legacy 2.5L H4Special Price $12.32 Regular Price $17.99
- Walker Rear Converter To Resonator Exhaust Bolt & Spring for 2013-2015 Subaru XV Crosstrek 2.0L H4Special Price $12.32 Regular Price $17.99
- Walker Rear Converter To Resonator Exhaust Bolt & Spring for 2016 Subaru Crosstrek 2.0L H4Special Price $12.75 Regular Price $17.99
- Walker Rear Converter To Resonator Exhaust Pipe Flange Gasket for 2008-2016 Subaru Impreza 2.0L 2.5L H4Special Price $18.68 Regular Price $26.99
- Walker Rear Converter To Resonator Exhaust Pipe Flange Gasket for 2009-2016 Subaru Forester 2.5L H4Special Price $19.23 Regular Price $26.99