The 2.0 SOHC G63B Starion manifolds aren't the only option but the alternatives aren't much better. Single cam Cordia turbo will work (notorious for cracking due to lean factory tune) or the manifold off a 2.0 DASH 12v turbo engine (better design manifold - split pulse) The whole engine is a near no brain swap - if you can find one. Much easier than a 4G63 twin cam (PLEASE DO NOT START THE "don't waste your time on a SOHC, blah, blah, etc..." TIRADE - this is minimal mod to retrofit alternative...) 83-87 Galant Cyclone turbo)