ELI5, Why do some engines, even though they are the same size sound different. For example, a BMW s1000rr has the almost the same engine as a Kawasaki zx10r, but, they sound so different at idle.

Question

ELI5, Why do some engines, even though they are the same size sound different. For example, a BMW s1000rr has the almost the same engine as a Kawasaki zx10r, but, they sound so different at idle.

In: Engineering

Answer 1

A multitude of factors. Exhaust systems and whether or not they’re turbocharged are two examples.