I agree. It isn't hurting anything. Unless you plan on turning your car into a "drag" car and start gutting it for weight...it really wont make a difference. And in the long run, if you decide you want some subwoofers, you wont have to buy some sound deadening material which can be pretty expensive. If you must remove it for whatever reason, there are tons of degreasers and tar removers on the market. Go check out your local Autozone and you'll find something. I promise it will be messy and you'll probably wind up scraping the stuff off (as well as scraping your trunk lid). Best of luck in whichever way you choose.
