ACCEL P526S U-Groove Spark Plug Header Plug Features: Header-Box U-Groove Ground Electrode Five-Rib Aluminum Insulator Copper Core Nickel/Chrome Steel Electric Heat Seal Copper-Glass Gas-Tight Seal Less Flame Dissipation Height: 1.00 Width: 3.30 Length: 1.00 Weight: 0.35 lbs Fitment: 2003/Pontiac/Grand Prix/SE Sedan 4-Door/3.1L 189Cu. In. V6 GAS OHV Naturally Aspirated::0.060 in. Plug Gap^^2003/Pontiac/Grand Am/SE2 Sedan 4-Door/3.4L 207Cu. In. V6 GAS OHV Naturally Aspirated::0.060 in. Plug Gap^^2003/Pontiac/Grand Am/SE2 Coupe 2-Door/3.4L 207Cu. In. V6 GAS OHV Naturally Aspirated::0.060 in. Plug Gap^^2003/Pontiac/Grand Am/SE1 Sedan 4-Door/3.4L 207Cu. In. V6 GAS OHV Naturally Aspirated::0.060 in. Plug Gap^^2003/Pontiac/Grand Am/SE1 Coupe 2-Door/3.4L 207Cu. In. V6 GAS OHV Naturally Aspirated::0.060 in. Plug Gap^^2003/Pontiac/Grand Am/SE Sedan 4...