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 Resonator Assm To Left Muffler Assm Exhaust Pipe Flange Gasket for 2000-2005 Lexus GS300 3.0L L6Special Price $6.03 Regular Price $8.99
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- Walker Int Pipe To Left Muffler Exhaust Clamp for 1984-1986 GMC C1500 Suburban 6.2L V8Special Price $4.23 Regular Price $5.99
- Walker Int Pipe To Left Muffler Exhaust Clamp for 1987-1991 GMC R1500 Suburban 6.2L V8Special Price $4.23 Regular Price $5.99
- Walker Int Pipe To Left Muffler Exhaust Clamp for 1987-1991 GMC R2500 Suburban 6.2L V8Special Price $4.23 Regular Price $5.99
- Walker Int Pipe To Left Muffler Exhaust Clamp for 1989-1991 Chevrolet R1500 Suburban 6.2L V8Special Price $4.49 Regular Price $5.99
- Walker Int Pipe To Left Muffler Exhaust Clamp for 1987-1988 Chevrolet R10 Suburban 6.2L V8Special Price $4.49 Regular Price $5.99
- Walker Int Pipe To Left Muffler Exhaust Clamp for 1984-1986 GMC C2500 Suburban 6.2L V8Special Price $4.49 Regular Price $5.99
- Walker Int Pipe To Left Muffler Exhaust Clamp for 1989-1991 Chevrolet R2500 Suburban 6.2L V8Special Price $4.49 Regular Price $5.99
- Walker Resonator Assm To Left Muffler Assm Exhaust Pipe Flange Gasket for 2005-2009 Subaru Outback 2.5L H4Special Price $5.77 Regular Price $7.99
- Walker Resonator Assm To Left Muffler Assm Exhaust Pipe Flange Gasket for 2005-2009 Subaru Legacy 2.5L H4Special Price $5.77 Regular Price $7.99
- Walker Resonator Assm To Left Muffler Assm Exhaust Pipe Flange Gasket for 2006-2007 Honda Accord 3.0L V6Special Price $5.77 Regular Price $7.99