I have a brand new blue flame one on mine ( mongoose really ) and i nearly tore the centre box of on a huge speed bump its all dented now and im gont take it out, i used to have a twin magnex and i had both box`s off that to, i was alot louder than my blue flame but when i get the centre box removed it should be the same, i like it cos my neibours are arse hole`s who dont like my car anyway and i just love starting it at 6.00 in the morning