SET OF 2 PERFORMANCE SPARK PLUG Yamaha Waverunner XL700-BXL700 2003 HRO243NOR14LGS235we 1. Higher HP and torque by up to 3 % 2. increased economy by up to 5% 3. 360 Firing Technology 4. Improved acceleration by up to 15 % 5. 5 UP TO 600 HOUR LIFESPAN