Update non-performance BRZ to PP
 

After I install the PP Brembo calipers/rotors/pads/wheels and Sacks dampers, what else are left? Please ignore appearance pieces.


Also for the brake system, is there anything else to change? Master cylinders? Proportioning valves? Do they use the same caliper brackets/carriers?

Wider wheels, different rear sway bars, rear spring rate.

Does really drive any better after all that?

I don't know. I only replaced the wheels to PP wheels. It drives better now because of new tires. I am curious how big of a difference the damper and brakes make for street driving.

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Nope

PP came standard on my 2017 Limited Edition 86

The Brembo's are good if you're really using your brakes, are they required on a streer car, nope, they do look nice though.

The Sachs coilovers, well, I thought they were rubbish on anything that wasn't as smooth as a pool table, I believe the valving was the issue.

My Sachs dampers and springs lasted about 3k km. I sold them for $250.

I replaced them with MCA street performance for a vast improvement everywhere.

https://mcasuspension.com/suspension

I have also installed the MCA traction mod on recommendation

https://mcasuspension.com/traction-mod

IMO effort would be better spent on good aftermarket stuff and camber solutions.

Opinions may vary