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 Int Pipe Left Exhaust System Insulator for 1996-2000 GMC C2500 5.7L 7.4L V8Special Price $9.51 Regular Price $13.99
- Walker Int Pipe Left Exhaust System Insulator for 1996-2000 Chevrolet K2500 5.7L 7.4L V8Special Price $9.87 Regular Price $13.99
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- Walker Extension Pipe To Resonator Assm Exhaust Pipe Flange Gasket for 1998 Chevrolet Malibu 2.4L L4Special Price $5.10 Regular Price $6.99
- Walker Extension Pipe To Resonator Assm Exhaust Pipe Flange Gasket for 1988-1992 Mazda 626 2.2L L4Special Price $5.49 Regular Price $7.99
- Walker Extension Pipe To Resonator Assm Exhaust Pipe Flange Gasket for 1994-1995 Kia Sephia 1.6L L4Special Price $5.77 Regular Price $7.99
- Walker Extension Pipe To Resonator Assm Exhaust Pipe Flange Gasket for 1988-1992 Mazda MX-6 2.2L L4Special Price $5.77 Regular Price $7.99
- Walker Extension Pipe To Resonator Assm Exhaust Pipe Flange Gasket for 2013-2016 Hyundai Santa Fe Sport 2.4L L4Special Price $6.24 Regular Price $8.99
- Walker Int Pipe Left Exhaust System Insulator for 1996-2000 Chevrolet C2500 5.7L 7.4L V8Special Price $9.51 Regular Price $13.99
- Walker Int Pipe Left Exhaust System Insulator for 1996-2000 GMC C3500 5.7L 7.4L V8Special Price $9.51 Regular Price $13.99
- Walker Int Pipe Left Exhaust System Insulator for 1996-2000 Chevrolet C3500 5.7L 7.4L V8Special Price $9.51 Regular Price $13.99
- Walker Int Pipe Left Exhaust System Hanger for 1979-1988 GMC P3500 6.2L 7.4L V8Special Price $9.78 Regular Price $13.99
- Walker Int Pipe Left Exhaust System Hanger for 1975-1988 Chevrolet P30 6.2L 7.4L V8Special Price $9.78 Regular Price $13.99
- Walker Int Pipe Left Exhaust System Insulator for 1996-2000 Chevrolet K3500 5.7L 7.4L V8Special Price $9.87 Regular Price $13.99
- Walker Extension Pipe To Resonator Assm Exhaust Pipe Flange Gasket for 1993 Honda Accord 2.2L L4Special Price $12.52 Regular Price $17.99