Originally made available on the Japanese market 2012 RX-8 Spirit R, the N3H1-18-100C is the best, and latest version of Mazda OEM ignition coil for ALL years of RX-8 (2004-2012).
This is the same coil now offered by Mazda in the North American market, although it carries a different part number (N3H1-18-100B-9U). These coils are sold as a complete set of 4
