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 Y-Pipe To Int Pipe Exhaust Clamp for 1988-1993 GMC K1500 6.2L V8Special Price $12.32 Regular Price $17.99 -
Fel-Pro Exhaust Manifold Gasket Set for 1988-1995 Chevrolet K1500 5.0L 5.7L V8Special Price $15.72 Regular Price $21.99 -
Walker Converter To Int Pipe Exhaust Pipe Flange Gasket for 1996-1999 GMC K1500 4.3L 5.0L V6 V8Special Price $16.48 Regular Price $23.99Out of stock -
Fel-Pro Exhaust Pipe Flange Gasket for 1996-1999 GMC K1500 5.0L 5.7L V8Special Price $19.81 Regular Price $27.99 -
Fel-Pro Exhaust Manifold Gasket Set for 1996-1998 GMC K1500 4.3L V6Special Price $24.28 Regular Price $34.99 -
Fel-Pro Exhaust Manifold Gasket Set for 1982-1998 GMC K1500 6.2L 6.5L V8Special Price $26.62 Regular Price $37.99 -
Fel-Pro Exhaust Manifold Hardware Kit for 1988-1999 Chevrolet K1500 5.0L 5.7L V8Special Price $50.50 Regular Price $71.99 -
Walker SoundFX Exhaust Muffler for 1988-1993 GMC K1500 4.3L 5.0L V6 V8Special Price $60.07 Regular Price $85.99 -
Walker SoundFX Exhaust Muffler for 1981-1986 GMC K1500 4.1L 4.3L 5.7L L6 V6 V8Special Price $73.54 Regular Price $104.99 -
Fel-Pro EGR Valve Gasket for 1988-1995 GMC K1500 4.3L 5.0L 5.7L V6 V8Special Price $8.98 Regular Price $12.99 -
Fel-Pro EGR Valve Gasket for 1988-1995 Chevrolet K1500 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 K1500 4.3L 5.0L V6 V8Special Price $9.21 Regular Price $12.99Out of stock -
Walker Muffler Assm To Tail Pipe Exhaust Clamp for 1988-1993 GMC K1500 4.3L 5.0L V6 V8Special Price $9.21 Regular Price $12.99Out of stock -
Walker Muffler To Tail Pipe Exhaust Clamp for 1988-1993 Chevrolet K1500 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 GMC K1500 5.7L 6.2L V8Special Price $9.21 Regular Price $12.99Out of stock -
Walker Exhaust Clamp for 1979-1986 GMC K1500 4.1L 4.3L 5.7L 6.2L L6 V6 V8Special Price $9.21 Regular Price $12.99Out of stock -
Walker Tail Pipe Left Exhaust Clamp for 1988-1993 Chevrolet K1500 5.7L 6.2L V8Special Price $9.21 Regular Price $12.99Out of stock -
Walker Muffler To Tail Pipe Exhaust Clamp for 1988-1993 GMC K1500 4.3L 5.0L V6 V8Special Price $9.40 Regular Price $12.99Out of stock -
Walker Tail Pipe Left Exhaust Clamp for 1988-1993 GMC K1500 5.7L 6.2L V8Special Price $9.40 Regular Price $12.99Out of stock -
Walker Muffler To Right Tail Pipe Exhaust Clamp for 1988-1993 Chevrolet K1500 5.7L 6.2L V8Special Price $9.40 Regular Price $12.99Out of stock -
Walker Muffler To Right Tail Pipe Exhaust Clamp for 1988-1993 GMC K1500 5.7L 6.2L V8Special Price $9.40 Regular Price $12.99Out of stock -
Walker Tail Pipe Exhaust Clamp for 1988-1993 GMC K1500 4.3L 5.0L V6 V8Special Price $9.40 Regular Price $12.99Out of stock -
Walker Tail Pipe Exhaust Clamp for 1988-1993 Chevrolet K1500 4.3L 5.0L V6 V8Special Price $9.40 Regular Price $12.99Out of stock -
Walker Muffler To Left Tail Pipe Exhaust Clamp for 1988-1993 Chevrolet K1500 5.7L 6.2L V8Special Price $9.40 Regular Price $12.99Out of stock -
Walker Tail Pipe Exhaust Clamp for 1980-1986 GMC K1500 5.0L 5.7L V8Special Price $9.44 Regular Price $12.99Out of stock -
Walker Muffler To Left Tail Pipe Exhaust Clamp for 1988-1993 Chevrolet K1500 5.7L 6.2L V8Special Price $9.44 Regular Price $12.99Out of stock -
Walker Exhaust Clamp for 1979-1980 GMC K1500 4.1L 5.7L 6.6L L6 V8Special Price $9.44 Regular Price $12.99Out of stock -
Walker Muffler To Right Tail Pipe Exhaust Clamp for 1988-1993 GMC K1500 5.7L 6.2L V8Special Price $9.44 Regular Price $12.99Out of stock -
Fel-Pro EGR Valve Gasket for 1996-1999 GMC K1500 4.3L 5.0L 5.7L V6 V8Special Price $9.53 Regular Price $13.99 -
Fel-Pro EGR Valve Gasket for 1979-1986 GMC K1500 5.0L 5.7L 6.6L V8Special Price $9.54 Regular Price $13.99 -
Walker Bracket Exhaust Clamp for 1988-1993 Chevrolet K1500 4.3L 5.0L V6 V8Special Price $9.58 Regular Price $13.99Out of stock -
Walker Int Pipe Exhaust Clamp for 1980-1986 GMC K1500 5.0L 5.7L V8Special Price $9.58 Regular Price $13.99Out of stock -
Walker Muffler To Right Tail Pipe Exhaust Clamp for 1988-1993 Chevrolet K1500 5.7L 6.2L V8Special Price $9.64 Regular Price $13.99Out of stock -
Walker Muffler To Left Tail Pipe Exhaust Clamp for 1988-1993 GMC K1500 5.7L 6.2L V8Special Price $9.64 Regular Price $13.99Out of stock -
Fel-Pro EGR Valve Gasket for 1996-1999 Chevrolet K1500 4.3L 5.0L 5.7L V6 V8Special Price $9.73 Regular Price $13.99 -
Walker Exhaust Clamp for 1979-1984 GMC K1500 4.1L 5.7L L6 V8Special Price $9.78 Regular Price $13.99Out of stock -
Walker Bracket Exhaust Clamp for 1988-1993 GMC K1500 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 K1500 5.7L V8Special Price $10.32 Regular Price $14.99 -
Walker Converter To Int Pipe Exhaust Clamp for 1988-1993 Chevrolet K1500 4.3L 5.0L V6 V8Special Price $10.48 Regular Price $14.99 -
Walker Y-Pipe To Converter Exhaust Clamp for 1988-1993 Chevrolet K1500 4.3L 5.0L V6 V8Special Price $10.48 Regular Price $14.99 -
Walker Converter To Int Pipe Exhaust Clamp for 1980-1993 GMC K1500 4.3L 5.0L 5.7L V6 V8Special Price $10.48 Regular Price $14.99 -
Walker Y-Pipe To Converter Exhaust Clamp for 1980-1993 GMC K1500 4.3L 5.0L 5.7L V6 V8Special Price $10.48 Regular Price $14.99 -
Walker Exhaust Clamp for 1979-1986 GMC K1500 4.1L 4.3L 5.7L 6.2L 6.6L L6 V6 V8Special Price $10.70 Regular Price $14.99 -
Walker Int Pipe To Muffler Exhaust Clamp for 1988-1993 Chevrolet K1500 4.3L 5.0L 5.7L 6.2L V6 V8Special Price $10.70 Regular Price $14.99 -
Walker Int Pipe To Muffler Exhaust Clamp for 1980-1993 GMC K1500 4.3L 5.0L 5.7L 6.2L V6 V8Special Price $10.70 Regular Price $14.99 -
Fel-Pro Exhaust Pipe Flange Gasket for 1979-1986 GMC K1500 4.8L 5.0L 5.7L 6.6L L6 V8Special Price $11.06 Regular Price $15.99

































































