SET OF 2 PERFORMANCE SPARK PLUG Tohatsu 9.8HP MFS 9.8A 4-Stroke (2013-2003) * GTZ1671BR14ZCXV1652 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