Let me clarify my earlier statement. If there is paintwork on the car, it will lose value, if their is only paintwork where the new front end was put on and there is no frame damage, etc. you probably won't hurt resale to someone that wants the car for the custom things done, as far as trading it in, or selling it to someone looking for a stock integra, resale is killed either way, so do what you like if you're keeping it for a while.