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
- Walker Int Pipe To Left Muffler Exhaust Pipe Flange Gasket for 2008-2014 Subaru Tribeca 3.6L H6Special Price $5.77 Regular Price $7.99
- Walker Int Pipe Right To Extension Right Exhaust Pipe Flange Gasket for 1990-1994 Lexus LS400 4.0L V8Special Price $3.35 Regular Price $4.99
- 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