[BOSCH EXPERTISE] - Bosch has produced over 1 billion fuel injectors and is the number one name in original equipment (OE) injectors, with more than 45 years of gasoline system experience [OPTIMAL PERFORMANCE] - All applications provide precision flow rates and original spray patterns for optimal performance in all driving conditions [HIGH EFFICIENCY] - Engineered for low fuel consumption and emissions - particularly in the starting and warm-up phase - and outstanding warm-start performance [PREMIUM QUALITY] - Manufactured with premium quality high-alloy steels and plastic coverings for optimum corrosion resistance and longevity [READY TO INSTALL] - Bosch injectors feature guaranteed OE fit, form, and function, and include seals and/or o-rings necessary for installation, so they're ready to install right out of the box Replaces OE numbers: 24503406, 24508208 Compatible with select vehicles (Note: engine affects fitment - verify specific vehicle fitment details with fit checker above): BUICK: 1996-05 Park Avenue, 1997-04 Regal, 1996-99 Riviera; CHEVROLET: 2004-05 Impala, 2004-05 Monte Carlo Compatible with (continued): OLDSMOBILE: 1996-99 LSS; PONTIAC: 1996-03 Bonneville, 1997-03 Grand Prix