Bigger turbine housings on old garretts are dumb. All it does it shift your powercurve right and doesn't net you much more top end. Just buy a better turbo and you won't have to make that compromise.
GTX2860 Gen II on built SR at 23psi on 100octane. If you want a 300-400whp responsive setup, it's either this or a 6258/6758 IMO.
