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 1990-2000 Lexus LS400 4.0L V8Special Price $25.86 Regular Price $36.99 -
MAHLE Exhaust Manifold Gasket Set for 2006-2018 Lexus ES350 GS300 GS350 GS450h IS250 IS300 IS350 RC300 RC350 RX350 RX4 2.5L 3.0L 3.5L V6Special Price $30.10 Regular Price $42.99 -
Fel-Pro EGR Valve Gasket for 1994-2003 Lexus ES300 3.0L V6Special Price $9.65 Regular Price $13.99Out of stock -
Walker Y-Pipe To Right Muffler Assm Exhaust Clamp for 1990-1994 Lexus LS400 4.0L V8Special Price $10.14 Regular Price $13.99 -
Walker Converter Front Right To Rear Right Exhaust Pipe Flange Gasket for 2005-2009 Lexus GX470 4.7L V8Special Price $10.64 Regular Price $14.99Out of stock -
Walker Exhaust Pipe Flange Gasket for 1992-2000 Lexus SC300 3.0L L6Special Price $11.00 Regular Price $15.99 -
Walker Rear Converter To Resonator Assm Exhaust Pipe Flange Gasket for 2004-2006 Lexus ES330 3.3L V6Special Price $11.11 Regular Price $15.99 -
Fel-Pro Exhaust Pipe Flange Gasket for 2002-2010 Lexus SC430 4.3L V8Special Price $11.35 Regular Price $15.99 -
Walker Muffler Assm Left Exhaust System Insulator for 1994 Lexus LS400 4.0L V8Special Price $11.72 Regular Price $16.99 -
Fel-Pro Rear Exhaust Pipe Flange Gasket for 2007-2015 Lexus RX350 3.5L V6Special Price $12.31 Regular Price $17.99 -
Fel-Pro Center Exhaust Pipe Flange Gasket for 2003-2009 Lexus GX470 4.7L V8Special Price $12.56 Regular Price $17.99 -
Walker Muffler Assm Exhaust System Insulator for 2006-2008 Lexus RX400h 3.3L V6Special Price $13.35 Regular Price $18.99 -
Fel-Pro Center Exhaust Pipe Flange Gasket for 2004-2006 Lexus ES330 3.3L V6Special Price $13.44 Regular Price $18.99 -
Fel-Pro Exhaust Pipe Flange Gasket for 2006-2015 Lexus IS250 2.5L V6Special Price $13.44 Regular Price $18.99 -
Fel-Pro Front Exhaust Pipe Flange Gasket for 2006-2016 Lexus IS350 3.5L V6Special Price $13.44 Regular Price $18.99 -
Fel-Pro Exhaust Pipe Flange Gasket for 2015-2016 Lexus RC350 3.5L V6Special Price $13.44 Regular Price $18.99 -
2 pc Walker Front Converter To Rear Converter Exhaust Pipe Flange Gaskets for 2000-2005 Lexus GS300 3.0L L6Special Price $13.48 Regular Price $18.99Out of stock -
2 pc MAHLE Left Exhaust Pipe Flange Gaskets for 1999-2000 Lexus RX300 3.0L V6Special Price $16.60 Regular Price $23.99 -
Fel-Pro Exhaust Manifold Gasket Set for 2004-2006 Lexus ES330 3.3L V6Special Price $18.61 Regular Price $26.99 -
Walker Muffler Assm To Resonator Assm Exhaust Pipe Flange Gasket for 2004-2006 Lexus RX330 3.3L V6Special Price $18.63 Regular Price $26.99 -
Fel-Pro Exhaust Manifold Gasket Set for 2004-2006 Lexus RX330 3.3L V6Special Price $18.99 Regular Price $26.99 -
Fel-Pro Exhaust Manifold Gasket Set for 2002-2003 Lexus ES300 3.0L V6Special Price $18.99 Regular Price $26.99 -
Walker Muffler Assm To Resonator Assm Exhaust Pipe Flange Gasket for 2006-2008 Lexus RX400h 3.3L V6Special Price $19.01 Regular Price $26.99 -
Fel-Pro Center Exhaust Pipe Flange Gasket for 2006-2008 Lexus RX400h 3.3L V6Special Price $21.99 Regular Price $30.99 -
Fel-Pro Exhaust Manifold Gasket Set for 2006 Lexus GS300 3.0L V6Special Price $25.34 Regular Price $35.99 -
Fel-Pro Rear Exhaust Pipe Flange Gasket for 2001-2006 Lexus LS430 4.3L V8Special Price $26.35 Regular Price $37.99 -
Fel-Pro Exhaust Manifold Gasket Set for 2015-2018 Lexus NX300h 2.5L L4Special Price $30.72 Regular Price $43.99 -
Fel-Pro EGR Valve Gasket for 1999-2003 Lexus RX300 3.0L V6Special Price $9.46 Regular Price $13.99Out of stock -
Walker Muffler Right Exhaust System Insulator for 1990-1994 Lexus LS400 4.0L V8Special Price $9.66 Regular Price $13.99 -
Walker Muffler Left Exhaust System Insulator for 1990-1994 Lexus LS400 4.0L V8Special Price $9.86 Regular Price $13.99 -
Walker Left Extension Pipe To Left Muffler Exhaust Clamp for 1990-1994 Lexus LS400 4.0L V8Special Price $9.93 Regular Price $13.99 -
Walker Y-Pipe To Left Muffler Assm Exhaust Clamp for 1990-1994 Lexus LS400 4.0L V8Special Price $9.93 Regular Price $13.99 -
Walker Muffler Assm Left To Int Pipe Left Exhaust Clamp for 1990-1994 Lexus LS400 4.0L V8Special Price $9.93 Regular Price $13.99 -
Walker Muffler Assm Right To Int Pipe Right Exhaust Clamp for 1990-1994 Lexus LS400 4.0L V8Special Price $10.14 Regular Price $13.99 -
Walker Right Extension Pipe To Right Muffler Exhaust Clamp for 1990-1994 Lexus LS400 4.0L V8Special Price $10.14 Regular Price $13.99 -
Walker Converter Rear To Muffler Assm Exhaust Clamp for 2006-2008 Lexus RX400h 3.3L V6Special Price $10.30 Regular Price $14.99 -
Walker Muffler Assm To Resonator Assm Exhaust Clamp for 2010-2015 Lexus RX350 3.5L V6Special Price $10.30 Regular Price $14.99 -
Walker Converter Rear To Muffler Assm Exhaust Clamp for 2004-2006 Lexus RX330 3.3L V6Special Price $10.30 Regular Price $14.99 -
Walker Rear Converter To Resonator Assm Exhaust Clamp for 1999-2001 Lexus ES300 3.0L V6Special Price $10.30 Regular Price $14.99 -
Walker Left Converter To Front Pipe Exhaust Pipe Flange Gasket for 2006-2008 Lexus RX400h 3.3L V6Special Price $10.42 Regular Price $14.99Out of stock -
Walker Right Converter To Y-Pipe Exhaust Pipe Flange Gasket for 2006-2008 Lexus RX400h 3.3L V6Special Price $10.42 Regular Price $14.99Out of stock -
Walker Front Pipe To Y-Pipe Exhaust Pipe Flange Gasket for 2010-2015 Lexus RX350 3.5L V6Special Price $10.42 Regular Price $14.99Out of stock -
Walker Converter Front Right To Rear Right Exhaust Pipe Flange Gasket for 2010-2017 Lexus GX460 4.6L V8Special Price $10.42 Regular Price $14.99Out of stock -
Walker Resonator Assm To Left Muffler Assm Exhaust Pipe Flange Gasket for 2007-2017 Lexus ES350 3.5L V6Special Price $10.42 Regular Price $14.99Out of stock -
Walker Left Converter To Front Pipe Exhaust Pipe Flange Gasket for 2003-2004 Lexus GX470 4.7L V8Special Price $10.42 Regular Price $14.99Out of stock -
Walker Converter Right To Rear Exhaust Pipe Flange Gasket for 2003-2004 Lexus GX470 4.7L V8Special Price $10.42 Regular Price $14.99Out of stock


































































