This is an OEM replacement oxygen sensor. It will restore lost fuel economy and perform equal to OE.

The use of leaded gas or additives is prohibited on vehicles used on public roads. Prolonged use of leaded gas will reduce the sensors expected life and require it to be changed at a more frequent rate.

The "97-03 Grand Prix - Front" will fit the following models:
BUICK CENTURY 1997-2000
BUICK LESABRE 1997-2003
BUICK PARK AVENUE 1997-2003
BUICK REGAL 1997-2003
BUICK RIVIERA 1997-1999
BUICK SKYLARK 1997-1998
CADILLAC DEVILLE 1996-1999
CADILLAC ELDORADO 1996-1999
CADILLAC ESCALADE 1999-2002
CADILLAC SEVILLE 1996-1999
CHEVROLET ASTRO 1996-1997
CHEVROLET AVALANCHE 1500 2002
CHEVROLET C1500 PICKUP 1996-1999
CHEVROLET C1500 SUBURBAN 1996-1999
CHEVROLET C2500 PICKUP 1996-2000
CHEVROLET C2500 SUBURBAN 1996-1999
CHEVROLET C3500 PICKUP 1996-2000
CHEVROLET CAMARO 1997-2002
CHEVROLET EXPRESS 1500 1996-2002
CHEVROLET EXPRESS 2500 1996-2002
CHEVROLET EXPRESS 3500 1996-2002
CHEVROLET G30 1996
CHEVROLET IMPALA 2000-2003
CHEVROLET K1500 PICKUP 1996-1999
CHEVROLET K1500 SUBURBAN 1996-1999
CHEVROLET K2500 PICKUP 1996-2000
CHEVROLET K2500 SUBURBAN 1996-1999
CHEVROLET K3500 PICKUP 1996-2000
CHEVROLET LUMINA 1997-2001
CHEVROLET MALIBU 1997-2000
CHEVROLET MONTE CARLO 1997-2003
CHEVROLET P30 1996-1999
CHEVROLET SILVERADO 1500 1999-2002
CHEVROLET SILVERADO 2500 1999-2001
CHEVROLET SILVERADO 3500 2001
CHEVROLET SUBURBAN 1500 2000-2002
CHEVROLET SUBURBAN 2500 2000-2001
CHEVROLET TAHOE 1996-2002
CHEVROLET VENTURE 1997-2000
GMC C1500 PICKUP 1996-1999
GMC C1500 SUBURBAN 1996-1999
GMC C2500 PICKUP 1996-2000
GMC C2500 SUBURBAN 1996-1999
GMC C3500 PICKUP 1996-2000
GMC G3500 1996
GMC K1500 PICKUP 1996-1999
GMC K1500 SUBURBAN 1996-1999
GMC K2500 PICKUP 1996-2000
GMC K2500 SUBURBAN 1996-1999
GMC K3500 1996-2000
GMC P3500 1996-1999
GMC SAFARI 1996-1997
GMC SAVANA 1500 1996-2002
GMC SAVANA 2500 1996-2002
GMC SAVANA 3500 1996-2002
GMC SIERRA 1500 1999-2002
GMC SIERRA 2500 1999-2001
GMC SIERRA 3500 2001
GMC YUKON 1996-2002
GMC YUKON XL 1500 2000-2002
GMC YUKON XL 2500 2000-2001
OLDSMOBILE 88 1997-1999
OLDSMOBILE ACHIEVA 1997-1998
OLDSMOBILE ALERO 1999-2000
OLDSMOBILE AURORA 1996-1999
OLDSMOBILE CUTLASS 1997-1999
OLDSMOBILE CUTLASS SUPREME 1997
OLDSMOBILE INTRIGUE 1998-1999
OLDSMOBILE LSS 1997-1999
OLDSMOBILE REGENCY 1997-1998
OLDSMOBILE SILHOUETTE 1997-2000
PONTIAC BONNEVILLE 1997-2003
PONTIAC FIREBIRD 1997-2002
PONTIAC GRAND AM 1997-2000
PONTIAC GRAND PRIX 1997-2003
PONTIAC MONTANA 1999-2000
PONTIAC TRANS SPORT 1997-1999

The "04+ Grand Prix - Front" will fit the following models:
BUICK ALLURE 2005-2009
BUICK LACROSSE 2005-2009
BUICK LESABRE 2004-2005
BUICK LUCERNE 2006-2008
BUICK PARK AVENUE 2004-2005
BUICK REGAL 2004
CHEVROLET ASTRO 1998-1999
CHEVROLET CAVALIER 2002-2005
CHEVROLET CLASSIC 2004-2005
CHEVROLET COBALT 2005-2007
CHEVROLET IMPALA 2004-2005
CHEVROLET MALIBU 2004-2005
CHEVROLET MONTE CARLO 2004-2005
GMC SAFARI 1998-1999
OLDSMOBILE ALERO 2002-2004
PONTIAC BONNEVILLE 2004-2005
PONTIAC GRAND AM 2002-2005
PONTIAC GRAND PRIX 2004-2008
PONTIAC SUNFIRE 2002-2005
SATURN ION 2003-2007
SATURN L SEDAN 2002-2003
SATURN L300 2004
SATURN LW WAGON 2002-2003
SATURN VUE 2002-2005