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 To Muffler Exhaust Clamp for 1988-1991 Dodge B250 3.9L V6Special Price $3.99 Regular Price $5.99
- Walker Int Pipe Exhaust System Insulator for 1983-1985 Toyota Celica 2.4L 2.8L L4 L6Special Price $5.26 Regular Price $7.99
- Walker Converter To Muffler Exhaust Clamp for 1999 Ford Econoline 5.4L V8Special Price $7.44 Regular Price $10.99
- Walker Int Pipe Exhaust System Insulator for 2009-2016 Ford E-350 Super Duty 5.4L V8Special Price $7.76 Regular Price $10.99
- Walker Int Pipe Exhaust System Insulator for 1993-1994 Plymouth Laser 2.0L L4Special Price $7.76 Regular Price $10.99
- Walker Int Pipe Exhaust System Insulator for 1989-1992 Ford Probe 2.2L 3.0L L4 V6Special Price $8.09 Regular Price $11.99
- Walker Int Pipe Exhaust System Insulator for 2005-2009 Buick LaCrosse 3.8L V6Special Price $8.09 Regular Price $11.99
- Walker Int Pipe Exhaust System Insulator for 2004-2006 Ford Econoline 5.4L V8Special Price $9.51 Regular Price $13.99
- Walker Int Pipe Exhaust System Insulator for 2004 Ford E-350 Club Wagon 5.4L V8Special Price $9.87 Regular Price $13.99
- Walker Int Pipe Exhaust System Hanger for 1987 Chevrolet V10 5.0L V8Special Price $10.15 Regular Price $13.99
- 2 pc Walker Int Pipe Exhaust System Insulators for 2005-2007 Pontiac G6 2.4L 3.5L L4 V6Special Price $10.91 Regular Price $15.99
- 2 pc Walker Int Pipe Exhaust System Insulators for 1995-2000 Mitsubishi Montero 3.0L 3.5L V6Special Price $16.44 Regular Price $22.99
- Walker Converter To Muffler Exhaust Clamp for 1987-1990 Jeep Wrangler 4.2L L6Special Price $3.96 Regular Price $5.99
- Walker Converter To Muffler Exhaust Clamp for 2000 Chrysler Grand Voyager 3.0L 3.3L V6Special Price $3.99 Regular Price $5.99
- Walker Converter To Muffler Exhaust Clamp for 2000 Chrysler Voyager 3.0L 3.3L V6Special Price $3.99 Regular Price $5.99
- Walker Converter To Muffler Exhaust Clamp for 1996-2000 Plymouth Grand Voyager 3.0L 3.3L 3.8L V6Special Price $3.99 Regular Price $5.99
- Walker Converter To Muffler Exhaust Clamp for 1991-2000 Dodge Caravan 3.0L 3.3L 3.8L V6Special Price $3.99 Regular Price $5.99
- Walker Converter To Muffler Exhaust Clamp for 1987-1988 Chevrolet P20 5.7L V8Special Price $4.23 Regular Price $5.99
- Walker Converter To Muffler Exhaust Clamp for 1979-1991 Dodge D150 3.9L 5.2L 5.9L V6 V8Special Price $4.23 Regular Price $5.99
- Walker Converter To Muffler Exhaust Clamp for 1988-1989 Dodge W100 5.2L 5.9L V8Special Price $4.23 Regular Price $5.99
- Walker Converter To Muffler Exhaust Clamp for 1996-2000 Dodge Grand Caravan 3.0L 3.3L 3.8L V6Special Price $4.25 Regular Price $5.99
- Walker Converter To Muffler Exhaust Clamp for 1996 Chevrolet Lumina APV 3.4L V6Special Price $4.25 Regular Price $5.99