Ken maeda's ae86 has had s13 IRS for years now. I don't think anyone has done the full s13 conversion except hibino.
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Part of:
Wangan Midnight Maximum Tune 2 sedan expert.
APXRO: JZX100 Chaser "Odaiba Romance" 815HP/DG B1 2 overhauls. secret weapon
PM!: UCF10 Celsior "Jealousy" 810HP/DG B3 0 overhauls. vs battle car