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 Converter Front Left To Rear Left Exhaust Pipe Flange Gasket for 2005-2018 Nissan Frontier 4.0L V6Special Price $3.08 Regular Price $3.99
- Walker Converter Front Left To Rear Left Exhaust Pipe Flange Gasket for 2005-2012 Nissan Pathfinder 4.0L V6Special Price $3.08 Regular Price $3.99
- Walker Converter Front Left To Rear Left Exhaust Pipe Flange Gasket for 2007-2010 Infiniti QX56 5.6L V8Special Price $3.31 Regular Price $4.99
- Walker Converter Front Left To Rear Left Exhaust Pipe Flange Gasket for 2003-2017 Toyota 4Runner 4.0L V6Special Price $3.35 Regular Price $4.99
- Walker Converter Front Left To Rear Left Exhaust Pipe Flange Gasket for 2007-2014 Toyota FJ Cruiser 4.0L V6Special Price $3.35 Regular Price $4.99
- Walker Converter Front Left To Rear Left Exhaust Pipe Flange Gasket for 2005-2015 Toyota Tacoma 4.0L V6Special Price $3.59 Regular Price $4.99
- Walker Converter Front Left To Rear Left Exhaust Pipe Flange Gasket for 2005-2009 Lexus GX470 4.7L V8Special Price $3.59 Regular Price $4.99
- Walker Y-Pipe To Muffler Exhaust Clamp for 1969-1974 Ford E-300 Econoline 5.0L V8Special Price $3.71 Regular Price $4.99
- Walker Y-Pipe To Muffler Exhaust Clamp for 1972-1974 Jeep CJ6 5.0L V8Special Price $3.71 Regular Price $4.99
- Walker Y-Pipe To Muffler Exhaust Clamp for 1991 Ford Thunderbird 3.8L V6Special Price $3.96 Regular Price $5.99
- Walker Y-Pipe To Muffler Exhaust Clamp for 1966-1974 Ford Bronco 4.7L 5.0L V8Special Price $3.96 Regular Price $5.99
- Walker Y-Pipe To Muffler Exhaust Clamp for 1967-1970 Mercury Marauder 6.4L 7.0L V8Special Price $4.23 Regular Price $5.99
- Walker Y-Pipe To Muffler Exhaust Clamp for 1976-1978 Dodge CB300 6.6L 7.2L V8Special Price $4.23 Regular Price $5.99
- Walker Y-Pipe To Muffler Exhaust Clamp for 1972-1973 Mercury Montego 5.8L 6.6L V8Special Price $4.25 Regular Price $5.99
- Walker Y-Pipe To Muffler Exhaust Clamp for 1967-1974 Mercury Monterey 6.4L 6.6L 7.0L 7.5L V8Special Price $4.49 Regular Price $5.99
- Walker Y-Pipe To Muffler Exhaust Clamp for 1976-1978 Dodge B300 6.6L 7.2L V8Special Price $4.49 Regular Price $5.99
- Walker Y-Pipe To Muffler Exhaust Clamp for 1967-1968 Mercury Commuter 6.4L 7.0L V8Special Price $4.49 Regular Price $5.99
- Walker Y-Pipe To Muffler Exhaust Clamp for 1976-1978 Dodge B200 6.6L 7.2L V8Special Price $4.49 Regular Price $5.99
- Walker Y-Pipe To Muffler Exhaust Clamp for 1976-1978 Plymouth PB200 6.6L 7.2L V8Special Price $4.49 Regular Price $5.99
- Walker Y-Pipe To Muffler Exhaust Clamp for 1967-1973 Ford Galaxie 500 4.7L 5.0L 5.8L 6.4L 6.6L 7.0L V8Special Price $4.49 Regular Price $5.99
- Walker Y-Pipe To Muffler Exhaust Clamp for 1967-1973 Ford Custom 500 4.7L 5.0L 5.8L 6.4L 6.6L 7.0L V8Special Price $4.49 Regular Price $5.99
- 2 pc Walker Converter Front Left To Rear Left Exhaust Pipe Flange Gaskets for 2007-2015 Nissan Titan 5.6L V8Special Price $7.38 Regular Price $10.99
- 2 pc Walker Converter Front Left To Rear Left Exhaust Pipe Flange Gaskets for 2005-2009 Toyota 4Runner 4.7L V8Special Price $7.63 Regular Price $10.99
- 2 pc Walker Y-Pipe To Muffler Exhaust Clamps for 2014-2015 Chevrolet Impala 2.5L L4Special Price $8.69 Regular Price $11.99
- 2 pc Walker Y-Pipe To Muffler Exhaust Clamps for 2010-2011 Buick LaCrosse 3.0L 3.6L V6Special Price $8.69 Regular Price $11.99