yeah subframes dont add hp and they are by no means an impressive mod. your wont impress your buddies when you say "Hey man! i just got some SFC!" lol but its probably one of the smartest mods you can do to your car, to most people dropping 150$ on peices of metal that 1) no one will prob even see or notice. and 2) that you will not gain power from seems worthless, but once your start upping your HP and running stickey tires and beating on your car, youll be pissed you didnt get them when you need to lift your doors to get them to close, or your convertible top starts pouring water on you when it rains lol