i made them by my self learnt and applied kher and u know guys i have returned margalla due to documents problem . so never used these boxes just untouched . dont know what would be the bass level in them but people use to make boxes for compact and to save trunk space plue light weight . ya fix ho jaye gay trunk may jaha tray lagay hotay hain behind the brak light so our center may stepni k oper jinta space hay wo free milay ga app ko suitbale for made for margalla and pioneer d2 d4 so final demand is 2.5 k it required loads of time loads of strugle feel free to contect me here:D courior charges wil pay buyer i might upload pics to show u guys