Let me warn you 1st, I got my door shaved and the poppers installed .................they are a pain in the ass. The popper last about a year or two and you got to replace them. Also when it snows the doors get stuck and if its hot the solenoid overheats and wont pop properly. Last reason (especially if you live in fairfax) police will screw with you left and right and if their real pricks they will try to impound your car. Supposely it is illegal in va and you cannot pass state inspection.