Set of 4 Ignition Coil Pack For Mazda RX-8 UF501 N3H1-18-100B-9U 6 months warranty 60 days money back or replacement High quality, 100%OEM quality New replacement ignition coil UF501 N3H1-18-100B-9U N3H118100B N3H118100B9U 5C1450 50231 N3H118100A9U