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 SoundFX Exhaust Muffler for 1988-1993 Chevrolet C1500 4.3L 5.0L V6 V8Special Price $61.30 Regular Price $87.99 -
Fel-Pro EGR Valve Gasket for 1979-1986 GMC C1500 5.0L 5.7L 6.6L V8Special Price $9.54 Regular Price $13.99 -
Walker Int Pipe Rear To Extension Exhaust Clamp for 1994-1995 Chevrolet C1500 6.5L V8Special Price $12.43 Regular Price $17.99 -
Walker Y-Pipe Oxygen Sensor Bung Plug for 1988-1993 GMC C1500 4.3L 5.0L V6 V8Special Price $15.59 Regular Price $21.99 -
Fel-Pro Exhaust Pipe Flange Gasket for 1996-1999 GMC C1500 4.3L 5.0L 5.7L V6 V8Special Price $16.09 Regular Price $22.99 -
Fel-Pro Exhaust Manifold Gasket Set for 1990-1993 Chevrolet C1500 7.4L V8Special Price $26.76 Regular Price $37.99 -
2 pc Walker Y-Pipe Inlets Exhaust Pipe Flange Gaskets for 1988-1993 Chevrolet C1500 4.3L 5.0L 5.7L 6.2L V6 V8Special Price $31.47 Regular Price $44.99 -
Fel-Pro Exhaust Manifold Hardware Kit for 1988-1999 Chevrolet C1500 5.0L 5.7L V8Special Price $50.50 Regular Price $71.99 -
Dorman Left Exhaust Manifold for 1988-1995 Chevrolet C1500 5.0L 5.7L V8Special Price $161.80 Regular Price $230.99 -
Dorman Left Exhaust Manifold for 1988-1995 GMC C1500 5.0L 5.7L V8Special Price $161.80 Regular Price $230.99 -
Fel-Pro EGR Valve Gasket for 1988-1995 Chevrolet C1500 4.3L 5.0L 5.7L 7.4L V6 V8Special Price $8.98 Regular Price $12.99 -
Fel-Pro EGR Valve Gasket for 1988-1995 GMC C1500 4.3L 5.0L 5.7L V6 V8Special Price $9.17 Regular Price $12.99 -
Walker Muffler Assm To Tail Pipe Exhaust Clamp for 1988-1993 Chevrolet C1500 4.3L 5.0L V6 V8Special Price $9.21 Regular Price $12.99Out of stock -
Walker Tail Pipe Exhaust Clamp for 1988-1993 Chevrolet C1500 4.3L 5.0L V6 V8Special Price $9.21 Regular Price $12.99Out of stock -
Walker Muffler To Left Tail Pipe Exhaust Clamp for 1988-1993 Chevrolet C1500 5.7L 6.2L V8Special Price $9.21 Regular Price $12.99Out of stock -
Walker Tail Pipe Left Exhaust Clamp for 1988-1993 GMC C1500 5.7L 6.2L V8Special Price $9.21 Regular Price $12.99Out of stock -
Walker Muffler To Right Tail Pipe Exhaust Clamp for 1988-1993 Chevrolet C1500 5.7L 6.2L V8Special Price $9.21 Regular Price $12.99Out of stock -
Walker Left Exhaust Clamp for 1979-1981 GMC C1500 5.7L V8Special Price $9.21 Regular Price $12.99Out of stock -
Walker Muffler To Left Tail Pipe Exhaust Clamp for 1988-1993 GMC C1500 5.7L 6.2L V8Special Price $9.21 Regular Price $12.99Out of stock -
Walker Exhaust Clamp for 1990 Chevrolet C1500 7.4L V8Special Price $9.21 Regular Price $12.99Out of stock -
Walker Muffler To Tail Pipe Exhaust Clamp for 1988-1993 Chevrolet C1500 4.3L 5.0L V6 V8Special Price $9.21 Regular Price $12.99Out of stock -
Walker Tail Pipe Exhaust Clamp for 1979-1993 GMC C1500 4.1L 4.3L 5.0L 5.7L L6 V6 V8Special Price $9.40 Regular Price $12.99Out of stock -
Walker Muffler Assm To Tail Pipe Exhaust Clamp for 1988-1993 GMC C1500 4.3L 5.0L V6 V8Special Price $9.40 Regular Price $12.99Out of stock -
Walker Muffler To Tail Pipe Exhaust Clamp for 1979-1993 GMC C1500 4.1L 4.3L 5.0L 5.7L L6 V6 V8Special Price $9.40 Regular Price $12.99Out of stock -
Walker Muffler To Right Tail Pipe Exhaust Clamp for 1988-1993 GMC C1500 5.7L 6.2L V8Special Price $9.40 Regular Price $12.99Out of stock -
Walker Tail Pipe Left Exhaust Clamp for 1988-1993 Chevrolet C1500 5.7L 6.2L V8Special Price $9.40 Regular Price $12.99Out of stock -
Walker Exhaust Clamp for 1985-1986 GMC C1500 4.3L V6Special Price $9.40 Regular Price $12.99Out of stock -
Walker Muffler To Left Tail Pipe Exhaust Clamp for 1988-1993 Chevrolet C1500 5.7L 6.2L V8Special Price $9.44 Regular Price $12.99Out of stock -
Walker Tail Pipe Exhaust Clamp for 1980 GMC C1500 5.0L 5.7L V8Special Price $9.44 Regular Price $12.99Out of stock -
Walker Muffler To Right Tail Pipe Exhaust Clamp for 1988-1993 GMC C1500 5.7L 6.2L V8Special Price $9.44 Regular Price $12.99Out of stock -
Walker Muffler To Left Tail Pipe Exhaust Clamp for 1988-1993 GMC C1500 5.7L 6.2L V8Special Price $9.44 Regular Price $12.99Out of stock -
Walker Muffler Assm To Tail Pipe Exhaust Clamp for 1980 GMC C1500 5.0L 5.7L V8Special Price $9.44 Regular Price $12.99Out of stock -
Walker Muffler To Right Tail Pipe Exhaust Clamp for 1988-1993 Chevrolet C1500 5.7L 6.2L V8Special Price $9.44 Regular Price $12.99Out of stock -
Fel-Pro EGR Valve Gasket for 1996-1999 Chevrolet C1500 4.3L 5.0L 5.7L V6 V8Special Price $9.53 Regular Price $13.99 -
Fel-Pro EGR Valve Gasket for 1996-1999 GMC C1500 4.3L 5.0L 5.7L V6 V8Special Price $9.53 Regular Price $13.99 -
Walker Int Pipe Exhaust Clamp for 1979-1981 GMC C1500 5.0L 5.7L V8Special Price $9.58 Regular Price $13.99Out of stock -
Walker Exhaust Clamp for 1979 GMC C1500 4.1L L6Special Price $9.64 Regular Price $13.99Out of stock -
Walker Bracket Exhaust Clamp for 1988-1993 Chevrolet C1500 4.3L 5.0L V6 V8Special Price $9.78 Regular Price $13.99Out of stock -
Walker Bracket Exhaust Clamp for 1988-1993 GMC C1500 4.3L 5.0L V6 V8Special Price $9.78 Regular Price $13.99Out of stock -
Fel-Pro Exhaust Pipe Flange Gasket for 1981-1985 GMC C1500 5.7L V8Special Price $10.32 Regular Price $14.99 -
Walker Int Pipe To Muffler Exhaust Clamp for 1979-1993 GMC C1500 4.1L 4.3L 5.0L 5.7L 6.2L L6 V6 V8Special Price $10.48 Regular Price $14.99 -
Walker Int Pipe To Muffler Exhaust Clamp for 1988-1993 Chevrolet C1500 4.3L 5.0L 5.7L 6.2L V6 V8Special Price $10.48 Regular Price $14.99 -
Walker Int Pipe Exhaust Clamp for 1980-1986 GMC C1500 5.0L 5.7L V8Special Price $10.48 Regular Price $14.99 -
Walker Y-Pipe To Converter Exhaust Clamp for 1988-1993 Chevrolet C1500 4.3L 5.0L V6 V8Special Price $10.48 Regular Price $14.99 -
Walker Exhaust Clamp for 1979-1986 GMC C1500 4.1L 4.3L L6 V6Special Price $10.70 Regular Price $14.99


































































