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 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 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
- 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
- 2 pc Walker Y-Pipe Inlets Exhaust Bolt & Springs for 1988-1995 GMC K3500 5.7L 6.2L V8Special Price $32.06 Regular Price $45.99
- 2 pc Walker Y-Pipe Inlets Exhaust Bolt & Springs for 1988-1995 Chevrolet K2500 4.3L 5.0L 5.7L 6.2L V6 V8Special Price $32.06 Regular Price $45.99
- 2 pc Walker Y-Pipe Inlets Exhaust Bolt & Springs for 1991 GMC R3500 5.7L V8Special Price $32.06 Regular Price $45.99
- 2 pc Walker Y-Pipe Inlets Exhaust Bolt & Springs for 1992-1994 Chevrolet Blazer 5.7L V8Special Price $32.06 Regular Price $45.99
- 2 pc Walker Y-Pipe Inlets Exhaust Bolt & Springs for 1991 Chevrolet R3500 5.7L V8Special Price $32.06 Regular Price $45.99
- 2 pc Walker Y-Pipe Inlets Exhaust Bolt & Springs for 1988-1995 Chevrolet C2500 4.3L 5.0L 5.7L 6.2L V6 V8Special Price $32.06 Regular Price $45.99
- 2 pc Walker Y-Pipe Inlets Exhaust Bolt & Springs for 1988-1990 GMC S15 4.3L V6Special Price $32.06 Regular Price $45.99
- 2 pc Walker Y-Pipe Inlets Exhaust Bolt & Springs for 1991 GMC V3500 5.7L V8Special Price $32.06 Regular Price $45.99
- 2 pc Walker Y-Pipe Inlets Exhaust Bolt & Springs for 1991-1994 Oldsmobile Bravada 4.3L V6Special Price $32.06 Regular Price $45.99
- 2 pc Walker Y-Pipe Inlets Exhaust Bolt & Springs for 1992-1994 GMC Jimmy 4.3L V6Special Price $32.06 Regular Price $45.99
- 2 pc Walker Y-Pipe Inlets Exhaust Bolt & Springs for 1992-1993 Chevrolet K1500 Suburban 5.7L V8Special Price $32.06 Regular Price $45.99
- 2 pc Walker Y-Pipe Inlets Exhaust Bolt & Springs for 1992-1993 GMC K1500 Suburban 5.7L V8Special Price $32.06 Regular Price $45.99
- 2 pc Walker Y-Pipe Inlets Exhaust Bolt & Springs for 1988-1993 Chevrolet C1500 4.3L 5.0L 5.7L 6.2L V6 V8Special Price $32.06 Regular Price $45.99
- 2 pc Walker Y-Pipe Inlets Exhaust Pipe Flange Gaskets for 1992-1996 GMC G3500 4.3L 5.7L V6 V8Special Price $32.66 Regular Price $46.99
- 2 pc Walker Y-Pipe Inlets Exhaust Pipe Flange Gaskets for 1992-1993 GMC C1500 Suburban 5.7L V8Special Price $32.66 Regular Price $46.99
- 2 pc Walker Y-Pipe Inlets Exhaust Pipe Flange Gaskets for 1988-1995 GMC K2500 4.3L 5.0L 5.7L 6.2L V6 V8Special Price $32.66 Regular Price $46.99
- 2 pc Walker Y-Pipe Inlets Exhaust Pipe Flange Gaskets for 1988-1994 Chevrolet S10 4.3L V6Special Price $32.66 Regular Price $46.99
- 2 pc Walker Y-Pipe Inlets Exhaust Pipe Flange Gaskets for 1988-1995 Chevrolet K3500 5.7L 6.2L V8Special Price $32.66 Regular Price $46.99