he had one on there he got a dynomax one from discount but he said it didnt sound the way he wanted it to. he said he liked the way mine sounded but mines just a no name catback that i got with the car when i bought it. as far as i know the only thing he has done to his car recently was take out the cat and muffler, i was talking to my neighbor and i think he eluded to the fact that he might of replaced his timing belt around that time too though...