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 Pipe Left To Muffler Left Exhaust Clamp for 1975-1978 GMC C35 7.4L V8Special Price $4.23 Regular Price $5.99
- Walker Front Pipe Left To Muffler Left Exhaust Clamp for 1979-1985 GMC C3500 7.4L V8Special Price $4.49 Regular Price $5.99
- Walker Front Pipe Left To Muffler Left Exhaust Clamp for 1975-1985 Chevrolet C30 7.4L V8Special Price $4.49 Regular Price $5.99
- Walker Muffler Right Exhaust System Insulator for 2003-2008 Pontiac Grand Prix 3.8L V6Special Price $7.76 Regular Price $10.99
- Walker Muffler Right Exhaust System Insulator for 2008-2011 Subaru Impreza 2.5L H4Special Price $5.26 Regular Price $7.99
- Walker Muffler Right Exhaust System Insulator for 2009-2013 Subaru Forester 2.5L H4Special Price $5.26 Regular Price $7.99
- Walker Muffler Right Exhaust System Insulator for 2007-2012 Lincoln MKZ 3.5L V6Special Price $7.76 Regular Price $10.99
- Walker Muffler Right Exhaust System Insulator for 2019 Ford Explorer 3.5L V6Special Price $7.76 Regular Price $10.99
- Walker Muffler Right Exhaust System Insulator for 2003-2008 Hyundai Tiburon 2.0L 2.7L L4 V6Special Price $7.76 Regular Price $10.99
- Walker Muffler Right Exhaust System Insulator for 1992-1995 Ford Taurus 3.8L V6Special Price $8.09 Regular Price $11.99
- Walker Muffler Right Exhaust System Hanger for 1990-1991 GMC K3500 6.2L V8Special Price $9.78 Regular Price $13.99
- Walker Muffler Right Exhaust System Hanger for 1990-1991 Chevrolet V3500 6.2L V8Special Price $9.78 Regular Price $13.99
- 2 pc Walker Muffler Right Exhaust System Insulators for 2009-2013 Subaru Forester 2.5L H4Special Price $11.30 Regular Price $15.99
- 2 pc Walker Muffler Right Exhaust System Insulators for 2008-2010 Subaru Impreza 2.5L H4Special Price $11.30 Regular Price $15.99
- 2 pc Walker Muffler Right Exhaust System Insulators for 1997-2002 Pontiac Grand Prix 3.8L V6Special Price $16.44 Regular Price $22.99
- 2 pc Walker Muffler Right Exhaust System Insulators for 2000-2005 Chevrolet Monte Carlo 3.8L V6Special Price $16.95 Regular Price $23.99
- 2 pc Walker Muffler Right Exhaust System Insulators for 2006-2011 Chevrolet Impala 3.9L 5.3L V6 V8Special Price $16.95 Regular Price $23.99
- 2 pc Walker Muffler Right Exhaust System Insulators for 1991-1992 Chevrolet Lumina 3.4L V6Special Price $20.51 Regular Price $28.99
- 3 pc Walker Muffler Right Exhaust System Insulators for 2009-2010 Dodge Journey 3.5L V6Special Price $25.80 Regular Price $36.99