box is300 lexus subwoofer custom subwoofer box lexus is300 Joined Apr 6 2005. Lexus - 2014 IS250 IS350 Sub box IS300 IS200T IS TURBO 1X10 or 1x12 Subwoofer enclosure 3rd GEN IS 2015 2016 2… Monday, July 25, 2022 Edit