Last time I saw, going for $168k or so renew 10 yrs COE..
Yes, Supra can go up to 1000+ bhp, and most of the time still using
stock engine!
Usually its bored up to 3.2litre and strengthened... using
extremely big turbos, like maybe T88H, can reach 1000+ bhp.
Skylines are similar, using the stock RB26DETT, can reach high
horsepower. But mostly they are bored up 200-400 ml more.