spotrak vocal cords


right when i nipped 2 tesco today in the sportrak i noticed another sporty just pulling out of a space and well it sounded gorgous i didnt get chance 2 ask the bloke what hes done to make it sound like that because it looked like the standard exhaust from behind, well id like a bit of that so i wondered if any 1 out there has any idea. dont want to sound like sum boy racer but i want it to sound nice cos mine is just too damn quite cheers !