Best For

• •ApplicationCompatible for Buick Allure V8 5.3L 2008-2009 Upstream (Front);Downstream (Rear) Compatible for Buick Century L4 2.2L 1996-1996 Downstream (Rear) Compatible for Buick Century V6 3.1L 1996-2004 Downstream (Rear) Compatible for Buick Lacrosse V8 5.3L 2008-2009 Upstream (Front);Downstream (Rear) Compatible for Buick Lesabre V6 3.8L 1996-2003 Downstream (Rear) Compatible for Buick Park Avenue V6 3.8L 1996-2003 Downstream (Rear) Compatible for Buick Rainier L6 4.2L Downstream 2004-2005 (Rear) Compatible for Buick Rainier V8 5.3L Downstream 2006-2006 (Rear) Compatible for Buick Regal V6 3.1L 1996-1996 Downstream (Rear) Compatible for Buick Regal V6 3.8L 1996-2003 Downstream (Rear) Compatible for Buick Rendezvous V6 2.8L 2002-2005 Downstream (Rear) Compatible for Buick Riviera V6 3.6L 1996-1999 Downstream (Rear) Compatible for Cadillac CTS V6 3.4L 2005-2007 Downstream (Rear) Compatible for Cadillac CTS V6 3.8L 2005-2006 Downstream (Rear) Compatible for Cadillac CTS-V V8 6.0L 2006-2007 Upstream (Front) Compatible for Cadillac Deville V8 4.6L 1996-1999 Downstream (Rear) Compatible for Cadillac Eldorado V8 4.6L 1996-1999 Downstream (Rear) Compatible for Cadillac Escalade V8 6.2L 2007-2007 Upstream (Front) Compatible for Cadillac Seville V8 4.6L 1996-1999 Downstream (Rear) Compatible for Cadillac SRX V6 3.6L 2005-2006 Downstream (Rear) Compatible for Cadillac SRX V8 4.6L 2005-2006 Downstream (Rear) Compatible for Cadillac STS V6 3.6L 2005-2007 Downstream (Rear) Compatible for Cadillac STS V8 4.6L 2005-2006 Downstream (Rear) Compatible for Chevrolet Avalanche V8 5.3L 2006-2007 Upstream (Front) Compatible for Chevrolet Avalanche V8 5.3L 2006-2007 Upstream (Front) Compatible for Chevrolet Avalanche V8 6.0L 2007-2007 Upstream (Front) Compatible for Chevrolet Camaro V6 3.8L 1996-2002 Downstream (Rear) Compatible for Chevrolet Camaro V8 5.7L 1996-1997 Downstream (Rear) Compatible for Chevrolet Camaro V8 5.7L 1998-2002 Upstream (Front);Downstream (Rear) Compatible for Chevrolet Colorado L4 2.8L 2004-2005 Downstream (Rear) Compatible for Chevrolet Colorado L5 3.5L 2004-2005 Downstream (Rear) Compatible for Chevrolet Colorado V8 5.3L 2009-2011 Upstream (Front) For 2008-2009 compatible for Chevrolet Equinox V6 3.6L Downstream (Rear) Compatible for Chevrolet Express 1500 V6 4.3L 2003-2003 Upstream (Front Right);Downstream (Rear Right) Compatible for Chevrolet Express 1500 V6 4.3L 2004-2006 Upstream (Front Right);Downstream (Rear Right) Compatible for Chevrolet Express 1500 V8 5.3L 2003-2003 Upstream (Front Right);Downstream (Rear Right) Compatible for Chevrolet Express 1500 V8 5.3L 2004-2006 Upstream (Front Right);Downstream (Rear Right) Compatible for Chevrolet Express 1500 V8 5.3L 2007-2007 Upstream (Front Right);Downstream (Rear Right) Compatible for Chevrolet Express 2500 V6 4.3L 2003-2003 Upstream (Front Right);Downstream (Rear Right) Compatible for Chevrolet Express 2500 V6 4.3L 2004-2005 Upstream (Front Right);Downstream (Rear Right) Compatible for Chevrolet Express 2500 V8 4.8L 2003-2003 Upstream (Front Right);Downstream (Rear Right compatible for Chevrolet Express 2500 V8 4.8L 2004-2007 Upstream (Front Right);Downstream (Rear Right) Compatible for Chevrolet Express 2500 V8 5.3L 2003-2003 Upstream (Front Right);Downstream (Rear Right) Compatible for Chevrolet Express 2500 V8 5.3L 2004-2005 Upstream (Front Right);Downstream (Rear Right) Compatible for Chevrolet Express 2500 V8 6.0L 2003-2003 Upstream (Front Right);Downstream (Rear Right) Compatible for Chevrolet Express 2500 V8 6.0L 2004-2004 Upstream (Front Right);Downstream (Rear Right) Compatible for Chevrolet Express 2500 V8 6.0L 2004-2004 Upstream (Front Right);Downstream (Rear Right) Compatible for Chevrolet Express 2500 V8 6.0L 2005-2007 Upstream (Front Right);Downstream (Rear Right) Compatible for Chevrolet Express 3500 V8 4.8L 2005-2007 Upstream (Front Right);Downstream (Rear Right) Compatible for Chevrolet Express 3500 V8 6.0L 2003-2003 Upstream (Front Right);Downstream (Rear Right) Compatible for Chevrolet Express 3500 V8 6.0L 2004-2007 Upstream (Front Right);Downstream (Rear Right) Compatible for Chevrolet Impala V6 3.4L 2000-2004 Downstream (Rear) Compatible for Chevrolet Impala V6 3.8L 2000-2003 Downstream (Rear) Compatible for Chevrolet Impala V8 5.3L 2006-2007 Upstream (Front) Compatible for Chevrolet Impala V8 5.3L 2008-2009 Upstream (Front);Downstream (Rear) Compatible for Chevrolet Lumina V6 3.1L 1996-2001 Downstream (Rear) Compatible for Chevrolet Lumina V6 3.4L 1996-1997 Downstream (Rear) Compatible for Chevrolet Lumina V6 3.8L 1998-1999 Downstream (Rear) Compatible for Chevrolet Lumina APV V6 3.4L 1996-1996 Downstream (Rear) Compatible for Chevrolet Lumina APV L4 2.2L 2004-2008 Downstream (Rear) Compatible for Chevrolet Monte Carlo V6 3.1L 1996-1999 Downstream (Rear) Compatible for Chevrolet Monte Carlo V6 3.4L 1996-1997 Downstream (Rear) Compatible for Chevrolet Monte Carlo V6 3.4L 2001-2004 Downstream (Rear) Compatible for Ch