AE86 rear suspension options 2018

[Project D]

T3 didn't come up with the setup, I think it was jondee86 (?) on the AE86fightclub forum (I don't remember for sure, and since that forum no longer exist...)
But anyway, here is the setup:
Bilstein 24-003971 (Saab 900) + energy 9.8107R or prothane 19-903 (lower bushing).

6kg is a bit too stiff for those though, around 4 / 4.5kg (220 / 260 lbs) is recommended. (T3 say up to 300lb -> 5.3kg)
The beauty of Bilstein (so to speak) is that they can be rebuild but also modified via specialists.

And just in case, before those informations are totally lost; the front setup:
34-184530 (VW GTI) + B30-629-C1 (gland nut)

BEWARE, those are NOT cheap !!!