5+ Year Member
wat is the best spark plug for D15b vtec??v-power??platinum??iridium??
b16bang said:....i believe the oems are iridium....
and he didn't say he was boosting
and i have the oem NGK ones and they didn't really make much of a difference, so i tried the Iridiums and it felt strong. Took'em to Autodreams (local shop) and hooked it up to their tester/display machine and the iridiums sparked stronger than the NGKs.