I know the purpose of a resonator is to control the pitch or type of sound the exhaust makes but my question is:
With a bottle style resonator, what difference does a longer bottle (18”) resonator make compared to a shorter (12”) bottle resonator. Assuming they have the same shape and materials used on the inside, what difference would going from a longer to shorter resonator do?
Would the shorter resonator sound slightly higher pitched and the longer resonator sound slightly lower pitched? What about actual volume wise?