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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Fel-Pro Exhaust Pipe Flange Gasket for 2001-2005 Lexus IS300 3.0L L6Special Price $10.92 Regular Price $15.99 -
Fel-Pro Exhaust Flange Stud & Nut for 2001-2005 Lexus IS300 3.0L L6Special Price $26.39 Regular Price $37.99 -
Walker Rear Converter To Resonator Assm Exhaust Pipe Flange Gasket for 2001-2005 Lexus IS300 3.0L L6Special Price $11.34 Regular Price $15.99 -
Fel-Pro Exhaust Pipe Flange Gasket for 2016 Lexus IS300 3.5L V6Special Price $13.44 Regular Price $18.99 -
Fel-Pro Front Exhaust Pipe Flange Gasket for 2016 Lexus IS300 3.5L V6Special Price $13.44 Regular Price $18.99 -
2 pc Walker Front Converter To Rear Converter Exhaust Pipe Flange Gaskets for 2001-2005 Lexus IS300 3.0L L6Special Price $13.76 Regular Price $19.99Out of stock -
Walker Resonator Assm To Muffler Assm Exhaust Bolt & Spring for 2001-2005 Lexus IS300 3.0L L6Special Price $21.50 Regular Price $30.99Out of stock -
Walker Resonator Assm To Muffler Assm Exhaust Pipe Flange Gasket for 2001-2005 Lexus IS300 3.0L L6Special Price $22.27 Regular Price $31.99 -
Fel-Pro Exhaust Manifold Gasket Set for 2016-2017 Lexus IS300 3.5L V6Special Price $25.34 Regular Price $35.99 -
Fel-Pro Exhaust Pipe Flange Gasket for 2016 Lexus IS300 3.5L V6Special Price $25.82 Regular Price $36.99



























