Changing vehicle engine?

[AlmightySo]

So, if you have played GTA IV on pc you can change what engine sound comes from each vehicle in the game files, I'm wondering if this is possible on the Xbox version of GTA V, I remember when you could do nitrous vehicles before the save editor had an option there was a file you clicked replace vehicle, can we use a hex editor and find out which string of numbers is the engine sound and replace it with a different set of numbers? I'd like to know if its possible to maybe put the sound from the Buffalo S (franks buffalo) on the MW Mesa...If anyone knows please pm me.