Prep for stage 3 + meth

[09Pirelli]

Hi all, im about to start getting parts ready for a stage 3 and meth build im going venom 450 and AEM kit, to my knowledge all i need is the following as i am already stage 2+ with every supporting mod, is there anything i missed? goal is to make 450bhp

AEM meth kit
Venom 450
160 bar FRV or 175?
LPFP rs3 brushless