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.
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- Walker Front Pipe To Y-Pipe Exhaust Pipe Flange Gasket for 1989-1995 Nissan Pathfinder 3.0L V6Special Price $3.32 Regular Price $4.99
- Walker Extension Pipe Right To Muffler Exhaust Clamp for 2002-2006 Cadillac Escalade EXT 6.0L V8Special Price $4.23 Regular Price $5.99
- 2 pc Walker Front Pipe To Y-Pipe Exhaust Pipe Flange Gaskets for 2007-2009 Lexus RX350 3.5L V6Special Price $7.96 Regular Price $10.99
- Walker Front Pipe To Y-Pipe Exhaust Pipe Flange Gasket for 2004-2006 Lexus RX330 3.3L V6Special Price $3.35 Regular Price $4.99
- Walker Front Pipe To Y-Pipe Exhaust Pipe Flange Gasket for 2004-2016 Toyota Sienna 3.3L 3.5L V6Special Price $3.35 Regular Price $4.99
- Walker Front Pipe To Y-Pipe Exhaust Pipe Flange Gasket for 2010-2015 Lexus RX350 3.5L V6Special Price $3.59 Regular Price $4.99
- Walker Front Pipe To Y-Pipe Exhaust Pipe Flange Gasket for 2004-2016 Toyota Highlander 3.3L 3.5L V6Special Price $3.59 Regular Price $4.99
- Walker Front Pipe To Y-Pipe Exhaust Clamp for 1968 Ford Custom 5.0L 6.4L 7.0L V8Special Price $3.96 Regular Price $5.99
- Walker Front Pipe To Y-Pipe Exhaust Clamp for 1968 Ford Galaxie 500 5.0L 6.4L 7.0L V8Special Price $3.96 Regular Price $5.99
- Walker Front Pipe To Y-Pipe Exhaust Clamp for 1967-1974 Mercury Monterey 6.4L 6.6L 7.0L 7.5L V8Special Price $3.99 Regular Price $5.99
- Walker Front Pipe To Y-Pipe Exhaust Clamp for 1969-1973 Ford LTD 5.0L 5.8L 6.4L 6.6L 7.0L V8Special Price $3.99 Regular Price $5.99
- Walker Front Pipe To Y-Pipe Exhaust Clamp for 1969-1973 Ford Galaxie 500 5.0L 5.8L 6.6L V8Special Price $3.99 Regular Price $5.99
- Walker Front Pipe To Y-Pipe Exhaust Clamp for 1969-1973 Ford Custom 500 5.0L 5.8L 6.4L 6.6L 7.0L V8Special Price $3.99 Regular Price $5.99
- Walker Front Pipe To Y-Pipe Exhaust Clamp for 1975-1981 Chevrolet P30 5.7L V8Special Price $3.99 Regular Price $5.99
- Walker Front Pipe To Y-Pipe Exhaust Clamp for 1969-1972 Ford Custom 5.0L 5.8L 6.4L 6.6L 7.0L V8Special Price $3.99 Regular Price $5.99
- Walker Extension Pipe Right To Muffler Exhaust Clamp for 2001-2006 GMC Yukon XL 1500 6.0L V8Special Price $4.23 Regular Price $5.99
- Walker Front Pipe To Y-Pipe Exhaust Clamp for 1979-1981 GMC P3500 5.7L V8Special Price $4.25 Regular Price $5.99
- Walker Front Pipe To Y-Pipe Exhaust Clamp for 1968-1974 Mercury Marquis 6.4L 6.6L 7.0L 7.5L V8Special Price $4.25 Regular Price $5.99
- Walker Front Pipe To Y-Pipe Exhaust Clamp for 1975-1978 GMC P35 5.7L V8Special Price $4.25 Regular Price $5.99
- Walker Front Pipe To Y-Pipe Exhaust Clamp for 1967-1968 Mercury Commuter 6.4L 7.0L V8Special Price $4.25 Regular Price $5.99
- Walker Front Pipe To Y-Pipe Exhaust Clamp for 1979-1981 GMC P2500 5.7L V8Special Price $4.25 Regular Price $5.99
- Walker Front Pipe To Y-Pipe Exhaust Clamp for 1975-1978 GMC P25 5.7L V8Special Price $4.25 Regular Price $5.99
- Walker Front Pipe To Y-Pipe Exhaust Clamp for 1967-1970 Mercury Marauder 6.4L 7.0L V8Special Price $4.25 Regular Price $5.99
- Walker Extension Pipe Right To Muffler Exhaust Clamp for 2003-2006 Cadillac Escalade ESV 6.0L V8Special Price $4.49 Regular Price $5.99
- Walker Front Pipe To Y-Pipe Exhaust Pipe Flange Gasket for 2006-2012 Toyota RAV4 3.5L V6Special Price $6.03 Regular Price $8.99