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
- 2 pc Walker Y-Pipe Exhaust System Insulators for 2000-2005 Chevrolet Monte Carlo 3.8L V6Special Price $16.95 Regular Price $23.99
- Walker Int Pipe To Extension Exhaust Pipe Flange Gasket for 1990-1992 Infiniti M30 3.0L V6Special Price $2.25 Regular Price $2.99
- Walker Int Pipe To Extension Exhaust Clamp for 1984-1985 Nissan 200SX 1.8L L4Special Price $3.71 Regular Price $4.99
- Walker Int Pipe To Extension Exhaust Clamp for 2001-2007 Chrysler Town & Country 3.3L V6Special Price $4.25 Regular Price $5.99
- Walker Y-Pipe Exhaust System Insulator for 2010-2015 Subaru Outback 3.6L H6Special Price $5.26 Regular Price $7.99
- Walker Int Pipe To Extension Exhaust Clamp for 1999-2004 Ford F-350 Super Duty 5.4L 6.8L V10 V8Special Price $7.12 Regular Price $9.99
- Walker Int Pipe To Extension Exhaust Clamp for 1987-1996 Chevrolet P30 4.3L 5.7L V6 V8Special Price $7.12 Regular Price $9.99
- Walker Int Pipe To Extension Exhaust Clamp for 1999-2004 Ford F-250 Super Duty 5.4L 6.8L V10 V8Special Price $7.44 Regular Price $10.99
- Walker Int Pipe To Extension Exhaust Clamp for 1987-1988 GMC P3500 5.7L V8Special Price $7.44 Regular Price $10.99
- Walker Y-Pipe Exhaust System Insulator for 2004-2008 Acura TL 3.2L V6Special Price $7.76 Regular Price $10.99
- Walker Y-Pipe Exhaust System Insulator for 2007-2008 Saturn Outlook 3.6L V6Special Price $7.76 Regular Price $10.99
- Walker Y-Pipe Exhaust System Insulator for 2004-2008 Acura TSX 2.4L L4Special Price $8.09 Regular Price $11.99
- Walker Y-Pipe Exhaust System Insulator for 1989-1993 Ford Thunderbird 3.8L V6Special Price $8.09 Regular Price $11.99
- Walker Y-Pipe Exhaust System Insulator for 1991-1992 Chevrolet Lumina 3.4L V6Special Price $9.51 Regular Price $9.87
- 2 pc Walker Y-Pipe Exhaust System Insulators for 1997-2002 Pontiac Grand Prix 3.8L V6Special Price $16.95 Regular Price $23.99