[cmiovino]

Not really.

For the street, you're not going to feel anything substantial. I have the performance pack Brembos (2017) on mine and they're not that much different than the stock brakes in terms of feel compared to the 1st or 2nd gens.

For suspension, the ride is likely going to be slightly firmer, but not much. The Sachs dampers on the PP actually feel more "crashy" than anything. Spring rates will be slightly upped with some pink STI springs. Likely 10% and maybe 10-20mm ride height difference.

It's basically a performance pack for the 2nd gen, not even a "true" tS version like the 1st gens had. The Brembos are cool, but aren't really needed at all for the street and even autocross. Track days... eh, maybe for the heat capacity.

Subaru's been doing this a lot with their performance cars. Slap on some bigger brake kit and slightly up some other things that are barely noticeable and call it a new trim level. Look at the WRX TR that just was announced.