LIKE THE TITTLE STATES I HAVE A 99 CIVIC COUPE AND IT HAS A CUSTOM 2 AND A HALF IN PIPEING FROM FRONT TO BACK, IT DOES HAVE THE CATALYST CONVERTER AND IT HAS A mAZDA3 MAZDASPEED MUFFLER. I WANT TO TRADE IT FOR A sTOCK EK EXHAUST FROM THE CAT TO THE BACK WOULD RATHER WITH THE CAT CAUSE IM NOT SURE IF WEN THEY DID THE EXHAUST IF THE RELOCATED THE CATALIC CONVERTER....LMK PM ME ASAP