Help? Any tip's for Upgrading & Tuning a (Subaru BRZ) to be a Drift Car

I bought a (Subaru BRZ) to use as a Drift Car, and I’m wanting to know what the Best Upgrade’s to have are - do I need to Convert the [Engine, Drivetrain, Aspiration] & ETC? The only Upgrade’s I’ve done to the car are, I Lowered the car and placed [Race Spring’s & Damper’s] - I also Converted the Tire’s to Street Compound & changed the Rear Tire Width to [255’s] and the Front’s are at Stock Width? And what’s the Best Drift Tuning Setup? I’m pretty new to Drifting though I have been practicing, any Help would be Greatly appreciated - Thank’s!