SET OF 6 SPARK PLUG for LIQUID PETROLEUM GAS LPG Mitsubishi 3000GT VR4 3.0L V6 with all engine serial nr. (all model year) * 68IP1LPDOR15LGSL55VB4 1. Higher HP and torque by up to 3 % 2. increased economy by up to 10% 3. 360 Firing Technology 4. Improved acceleration by up to 15 % 5. 25,000 miles - 40,000 km duration