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 Right Exhaust Clamp for 1976-1978 Chevrolet K10 5.0L 5.7L 6.6L V8Special Price $4.25 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 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
- Fel-Pro Right Exhaust Pipe Flange Gasket for 2002-2006 Chevrolet Avalanche 1500 5.3L V8Special Price $8.78 Regular Price $12.99
- Fel-Pro Right Exhaust Pipe Flange Gasket for 2009-2010 Hummer H3T 5.3L V8Special Price $8.78 Regular Price $12.99
- Fel-Pro Right Exhaust Pipe Flange Gasket for 2015-2016 Chevrolet Suburban 5.3L 6.0L V8Special Price $8.78 Regular Price $12.99
- Fel-Pro Right Exhaust Pipe Flange Gasket for 2000-2014 Chevrolet Suburban 1500 5.3L 6.0L V8Special Price $9.13 Regular Price $12.99
- Fel-Pro Right Exhaust Pipe Flange Gasket for 2007 GMC Sierra 1500 Classic 4.3L 4.8L 5.3L V6 V8Special Price $9.13 Regular Price $12.99
- Walker Int Pipe Exhaust System Insulator for 2004-2006 Ford Econoline 5.4L V8Special Price $9.51 Regular Price $13.99
- Walker Right Exhaust System Hanger for 1989 Chevrolet R2500 6.2L V8Special Price $9.78 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 Right Exhaust System Hanger for 1988 Chevrolet R30 6.2L V8Special Price $10.15 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 Right Exhaust Pipe Flange Gasket for 2006-2010 Infiniti M45 4.5L V8Special Price $3.08 Regular Price $3.99
- Walker Right Exhaust Pipe Flange Gasket for 2006-2010 Infiniti M35 3.5L V6Special Price $3.31 Regular Price $4.99
- Fel-Pro Right Exhaust Pipe Flange Gasket for 1990-1992 Toyota Land Cruiser 4.0L L6Special Price $3.50 Regular Price $4.99