Autronic SM4 plug-in ECU with the ignition multiplexer on board. Came out of my R33 GTST but will suit a bunch of other models. MAP sensor and AFM support - $1000
Splitfire coil packs suit S1 RB25DET - $350
External oil pump setup incl. Peterson external single-stage pump, mounting bracket, pre-filter, main filter, baffled and modified sump, harmonic balancer, drive assembly, belt, -12 AN lines and fittings - $2000