In that case, K&N intakes + High Flow Cats and take it to Jez @ Horsham Developments for a remap.
https://www.torqen.uk/nissan/370z/intakes/intakes-system/306-370z-kn-typhoon-air-intake-dual-kit-69-7078ts.html
https://www.torqen.uk/nissan/370z/exhausts/high-flow-cats/13861-370z-torqen-high-flow-cats-trq-vqhr-hfc.html
Both in stock
Not sure what the current status of the ECU, if there is an UpRev or EcuTek license on it, either way, ask Jez to look at the gearbox mapping too, increasing the line pressure a bit, making it more responsive, as standard can be a bit sluggish.