COOL SOUNDING V8'S

AT THE LOCAL TRACK I USED TO RACE AT (BEFORE I WENT TO IRAQ) THE SPORTSMAN OR LATEMODEL CARS HAD 2 DISTINCT SOUNDS THE REALLY LOUD RUMBLE OF RAW POWER AND THE LESS COMMON QUIET LOW DECIBAL MORE LIKE A SMALL JET OR SOMETHING SOUND. I KNOW HOW TO MAKE THE RUMBLE BUT I WANT THE QUIETER JET LIKE SOUND DOES THAT COME FROM EQUAL LENGTH HEADERS OR 180 DEG. CROSSOVER HEADERS OR IS IT A SIMPLE MUFFLER BECAUSE IT SOUNDS COOL AND I WANT MY CAR TO SOUND LIKE THAT WHEN I FINALLY GET BACK AND RACE AGAIN ANY HELP IS APPRECIATED THANKS