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 Converter Left To Extension Pipe Left Exhaust Clamp for 2002-2006 Cadillac Escalade EXT 6.0L V8Special Price $4.23 Regular Price $5.99
- Walker Converter Left To Extension Pipe Left Exhaust Clamp for 2003-2006 Cadillac Escalade ESV 6.0L V8Special Price $4.49 Regular Price $5.99
- Walker Converter Left To Extension Pipe Left Exhaust Clamp for 2003-2006 Chevrolet Express 3500 4.8L 6.0L V8Special Price $7.12 Regular Price $9.99
- Walker Muffler Assm Rear Exhaust System Insulator for 2009-2014 Honda Ridgeline 3.5L V6Special Price $8.09 Regular Price $11.99
- Walker Muffler Assm Rear Exhaust System Insulator for 2006-2007 Buick Rainier 4.2L L6Special Price $9.87 Regular Price $13.99
- 2 pc Walker Muffler Assm Rear Exhaust System Insulators for 2001-2004 Nissan Pathfinder 3.5L V6Special Price $10.91 Regular Price $15.99
- 2 pc Walker Muffler Assm Rear Exhaust System Insulators for 2001-2003 Infiniti QX4 3.5L V6Special Price $11.30 Regular Price $15.99
- Walker Converter Left To Extension Pipe Left Exhaust Pipe Flange Gasket for 2006-2009 GMC Savana 3500 4.8L 6.0L V8Special Price $13.21 Regular Price $18.99
- Walker Converter Left To Extension Pipe Left Exhaust Pipe Flange Gasket for 2006-2009 Chevrolet Express 3500 4.8L 6.0L V8Special Price $13.21 Regular Price $18.99
- 2 pc Walker Muffler Assm Rear Exhaust System Insulators for 2006-2008 Honda Ridgeline 3.5L V6Special Price $16.44 Regular Price $22.99
- 3 pc Walker Muffler Assm Rear Exhaust System Insulators for 2001-2002 Acura MDX 3.5L V6Special Price $25.12 Regular Price $35.99
- 3 pc Walker Muffler Assm Rear Exhaust System Insulators for 2003-2004 Honda Pilot 3.5L V6Special Price $25.80 Regular Price $36.99