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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4 pc Walker Exhaust Clamps for 1982-1991 GMC Jimmy 6.2L V8Special Price $20.74 Regular Price $29.99
- 4 pc Walker Exhaust Clamps for 1991-1993 GMC G2500 6.2L V8Special Price $20.74 Regular Price $29.99
- 4 pc Walker Exhaust System Insulators for 1996 Buick Roadmaster 5.7L V8Special Price $22.73 Regular Price $31.99
- 4 pc Walker Exhaust System Insulators for 1993-1994 Toyota T100 3.0L V6Special Price $22.73 Regular Price $31.99
- 4 pc Walker Exhaust System Insulators for 1995-1997 Hyundai Accent 1.5L L4Special Price $22.73 Regular Price $31.99
- 4 pc Walker Muffler Assm Exhaust System Insulators for 2003-2009 Lexus GX470 4.7L V8Special Price $22.73 Regular Price $31.99
- 4 pc Walker Exhaust System Insulators for 1990-1997 Lincoln Town Car 4.6L 5.0L V8Special Price $22.73 Regular Price $31.99
- 4 pc Walker Exhaust System Insulators for 1995-1998 Nissan 240SX 2.4L L4Special Price $22.73 Regular Price $31.99
- 4 pc Walker Muffler Assm Exhaust System Insulators for 2005-2017 Toyota Tacoma 2.7L L4Special Price $23.37 Regular Price $32.99
- 4 pc Walker Muffler Assm Exhaust System Insulators for 2010-2017 Lexus GX460 4.6L V8Special Price $23.37 Regular Price $32.99
- 4 pc Walker Muffler Assm Exhaust System Insulators for 1995-1997 Subaru Legacy 2.2L 2.5L H4Special Price $23.37 Regular Price $32.99
- 4 pc Walker Exhaust System Insulators for 2007-2017 Lexus LS460 4.6L V8Special Price $23.37 Regular Price $32.99
- 4 pc Walker Muffler Assm Exhaust System Insulators for 2003-2017 Toyota 4Runner 4.0L 4.7L V6 V8Special Price $23.37 Regular Price $32.99
- 4 pc Walker Exhaust System Insulators for 1996 Chevrolet Impala 5.7L V8Special Price $23.37 Regular Price $32.99
- 4 pc Walker Exhaust Pipe Flange Gaskets for 1990-1996 Nissan 300ZX 3.0L V6Special Price $26.21 Regular Price $36.99
- 4 pc Walker Muffler Assm Exhaust System Insulators for 2009-2015 Toyota Venza 3.5L V6Special Price $33.80 Regular Price $47.99
- 4 pc Walker Muffler Exhaust System Insulators for 1988-1992 Mazda MX-6 2.2L L4Special Price $33.80 Regular Price $47.99
- 4 pc Walker Exhaust System Insulators for 1988-1992 Mazda MX-6 2.2L L4Special Price $33.80 Regular Price $47.99
- 4 pc Walker Exhaust System Insulators for 1995 Chevrolet Monte Carlo 3.4L V6Special Price $33.80 Regular Price $47.99
- 4 pc Walker Muffler Exhaust System Insulators for 1989-1992 Ford Probe 2.2L 3.0L L4 V6Special Price $34.66 Regular Price $49.99
- 4 pc Walker Resonator Assm Exhaust System Insulators for 1988-1992 Mazda 626 2.2L L4Special Price $34.66 Regular Price $49.99
- 4 pc Walker Muffler Exhaust System Insulators for 1988-1992 Mazda 626 2.2L L4Special Price $34.66 Regular Price $49.99
- 4 pc Walker Exhaust System Insulators for 1991-1996 Chevrolet G30 7.4L V8Special Price $39.78 Regular Price $56.99
- 4 pc Walker Exhaust System Hangers for 1983-1990 GMC G3500 6.2L V8Special Price $41.54 Regular Price $58.99
