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 Rear Converter To Resonator Assm Exhaust Clamp for 1999-2001 Lexus ES300 3.0L V6Special Price $10.30 Regular Price $14.99 -
Fel-Pro Exhaust Pipe Flange Gasket for 1994-2003 Lexus ES300 3.0L V6Special Price $13.44 Regular Price $18.99 -
2 pc Walker Muffler Assm Exhaust System Insulators for 1997-2003 Lexus ES300 3.0L V6Special Price $15.92 Regular Price $22.99 -
Fel-Pro Exhaust Manifold Gasket Set for 2002-2003 Lexus ES300 3.0L V6Special Price $18.99 Regular Price $26.99 -
Fel-Pro EGR Valve Gasket for 1994-2003 Lexus ES300 3.0L V6Special Price $9.65 Regular Price $13.99Out of stock -
Walker Converter Right To Rear Exhaust Pipe Flange Gasket for 2002-2003 Lexus ES300 3.0L V6Special Price $10.42 Regular Price $14.99Out of stock -
Walker Exhaust Pipe Flange Gasket for 1992-1998 Lexus ES300 3.0L V6Special Price $10.64 Regular Price $14.99Out of stock -
Walker Converter Left To Rear Exhaust Pipe Flange Gasket for 2002-2003 Lexus ES300 3.0L V6Special Price $10.64 Regular Price $14.99Out of stock -
Walker Converter Inlet Center Exhaust Pipe Flange Gasket for 1999-2001 Lexus ES300 3.0L V6Special Price $10.64 Regular Price $14.99Out of stock -
Walker Front Converter To Center Exhaust Pipe Flange Gasket for 1999-2001 Lexus ES300 3.0L V6Special Price $10.64 Regular Price $14.99Out of stock -
Walker Exhaust Pipe Flange Gasket for 1994-1996 Lexus ES300 3.0L V6Special Price $11.00 Regular Price $15.99 -
Walker Rear Converter To Resonator Assm Exhaust Pipe Flange Gasket for 2002-2003 Lexus ES300 3.0L V6Special Price $11.11 Regular Price $15.99 -
Fel-Pro Exhaust Pipe Flange Gasket for 1992-2001 Lexus ES300 3.0L V6Special Price $11.15 Regular Price $15.99 -
Walker Muffler Assm Exhaust System Insulator for 1999-2001 Lexus ES300 3.0L V6Special Price $11.48 Regular Price $15.99 -
Fel-Pro Rear Exhaust Pipe Flange Gasket for 2002-2003 Lexus ES300 3.0L V6Special Price $11.59 Regular Price $16.99 -
Walker Exhaust System Insulator for 1992-1996 Lexus ES300 3.0L V6Special Price $11.72 Regular Price $16.99 -
Fel-Pro Exhaust Pipe Flange Gasket for 2002-2003 Lexus ES300 3.0L V6Special Price $12.31 Regular Price $17.99 -
Walker Resonator Assm To Muffler Assm Exhaust Pipe Flange Gasket for 1997-2003 Lexus ES300 3.0L V6Special Price $12.37 Regular Price $17.99Out of stock -
Walker Converter To Resonator Assm Exhaust Pipe Flange Gasket for 1997-1998 Lexus ES300 3.0L V6Special Price $12.62 Regular Price $17.99Out of stock -
Walker Exhaust Pipe Flange Gasket for 1994-1996 Lexus ES300 3.0L V6Special Price $12.62 Regular Price $17.99Out of stock -
Fel-Pro Exhaust Pipe Flange Gasket for 1992-1996 Lexus ES300 3.0L V6Special Price $13.15 Regular Price $18.99 -
Fel-Pro Center Exhaust Pipe Flange Gasket for 2002-2003 Lexus ES300 3.0L V6Special Price $13.44 Regular Price $18.99 -
Fel-Pro Exhaust Pipe Flange Gasket for 1997-2003 Lexus ES300 3.0L V6Special Price $13.44 Regular Price $18.99 -
2 pc Walker Converter Inlet Left Exhaust Pipe Flange Gaskets for 1997-1998 Lexus ES300 3.0L V6Special Price $13.48 Regular Price $18.99Out of stock -
2 pc Walker Exhaust Pipe Flange Gaskets for 1992-1993 Lexus ES300 3.0L V6Special Price $13.76 Regular Price $19.99Out of stock -
Walker Exhaust Pipe Flange Gasket for 1992-1994 Lexus ES300 3.0L V6Special Price $14.72 Regular Price $20.99 -
Walker Converter Center To Rear Exhaust Pipe Flange Gasket for 1999-2001 Lexus ES300 3.0L V6Special Price $15.80 Regular Price $22.99Out of stock -
Walker Resonator Assm To Muffler Assm Exhaust Pipe Flange Gasket for 1999-2001 Lexus ES300 3.0L V6Special Price $15.87 Regular Price $22.99Out of stock -
2 pc Walker Exhaust System Insulators for 1994-1996 Lexus ES300 3.0L V6Special Price $15.92 Regular Price $22.99 -
2 pc Walker Resonator Assm Exhaust System Insulators for 1999-2003 Lexus ES300 3.0L V6Special Price $15.92 Regular Price $22.99 -
Walker Resonator Assm To Muffler Assm Exhaust Bolt & Spring for 1999-2001 Lexus ES300 3.0L V6Special Price $16.41 Regular Price $22.99Out of stock -
3 pc Walker Exhaust System Insulators for 1992-1993 Lexus ES300 3.0L V6Special Price $19.71 Regular Price $27.99 -
Fel-Pro Center Exhaust Pipe Flange Gasket for 2001 Lexus ES300 3.0L V6Special Price $20.21 Regular Price $28.99 -
Fel-Pro Rear Exhaust Pipe Flange Gasket for 2001 Lexus ES300 3.0L V6Special Price $21.99 Regular Price $30.99 -
Fel-Pro Exhaust Flange Stud & Nut for 1992-2003 Lexus ES300 3.0L V6Special Price $26.39 Regular Price $37.99 -
Dorman EGR Vacuum Modulator for 1992-2001 Lexus ES300Special Price $47.80 Regular Price $67.99Out of stock -
Dorman EGR Vacuum Modulator for 1992-2001 Lexus ES300Special Price $48.78 Regular Price $69.99Out of stock


























































