I dont think it needs to come out but ive heard its easier with the engine out. Im not certain to be honest guess it depends who does the work. Why dont you contact a few subaru specialists and ask for quotes remember too alot of guys dont like fitting parts that you supply, im just trying to give you a ball park figure 👍 My car had clutch done not long before I bought it, its one of the few problems I dont have with mine 🤣😂