Yes, whatever engine you use, will take it's sound with it. If you like the sound of the 787B, and decide to throw that engine in your civic, then your civic will have the sound of the 787B. That will work for all engines, just be careful if you swap a NA tune engine into a car that has normally uses a turbo engine and has a stock turbo still attached That turbo will need to be removed, or you will experience a poor engine tone, and a poorly running vehicle(major turbo lag and slow RPMs).