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 Y-Pipe To Muffler Exhaust Clamp for 1967-1970 Mercury Marauder 6.4L 7.0L V8Special Price $4.23 Regular Price $5.99
- Walker Converter Rear To Int Pipe Exhaust Pipe Flange Gasket for 2014-2016 Toyota Highlander 3.5L V6Special Price $2.25 Regular Price $2.99
- Walker Converter Rear To Int Pipe Exhaust Pipe Flange Gasket for 1999-2000 Nissan Maxima 3.0L V6Special Price $2.25 Regular Price $2.99
- Walker Converter Rear To Int Pipe Exhaust Pipe Flange Gasket for 1985-1986 Nissan Maxima 3.0L V6Special Price $2.56 Regular Price $3.99
- 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 1976-1978 Dodge CB300 6.6L 7.2L V8Special Price $4.23 Regular Price $5.99
- Walker Y-Pipe To Muffler Exhaust Clamp for 1973 Mercury Monterey 5.8L V8Special Price $4.25 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 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 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 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
- Walker Converter Rear To Int Pipe Exhaust Pipe Flange Gasket for 1990-1991 Subaru XT 1.8L 2.7L H4 H6Special Price $5.62 Regular Price $7.99
- Walker Converter Rear To Int Pipe Exhaust Pipe Flange Gasket for 1990-1994 Mitsubishi Eclipse 2.0L L4Special Price $5.77 Regular Price $7.99
- Walker Converter Rear To Int Pipe Exhaust Pipe Flange Gasket for 2006-2008 Honda Ridgeline 3.5L V6Special Price $6.52 Regular Price $8.99
- 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
- 2 pc Walker Y-Pipe To Muffler Exhaust Clamps for 2014-2015 Chevrolet Impala 2.5L L4Special Price $8.69 Regular Price $11.99
- Walker Converter Rear To Int Pipe Exhaust Pipe Flange Gasket for 2009-2016 GMC Acadia 3.6L V6Special Price $13.08 Regular Price $18.99
- Walker Converter Rear To Int Pipe Exhaust Pipe Flange Gasket for 2009-2010 Saturn Outlook 3.6L V6Special Price $13.52 Regular Price $18.99
- Walker Converter Rear To Int Pipe Exhaust Pipe Flange Gasket for 2009-2017 Chevrolet Traverse 3.6L V6Special Price $13.52 Regular Price $18.99
- Walker Converter Rear To Int Pipe Exhaust Bolt & Spring for 2008-2015 Scion xB 2.4L L4Special Price $20.00 Regular Price $28.99