ondgennis, not joining us?
sound like you are riding RD2 / Hyundai Coupe Turbelence .
basically RD2 and RD1 having the same engine. If that's the case, there are successful case of doing 4G93T (EVO), 4G63T (GSR) conversion.
try avoid bolt-on Turbo will be my advice, better take the half-cut and convert it.
1 of the Coupe Club member did his 4G63T (220 hp) onversion with my mech. His Coupe is a daily ride, always running up and down Rawang and Klang Valley without problem.