so this question is really noobish...

now that i have my car back, when i engage vtec, it does not sound as loud as it used to. i mean sohc vtec is not loud as dual cams, but audible enough to where one can tell the difference easily...
well now it just does not sound as voluptuous as it did before
so can the decible of the crossover be changed by changed made in the engine?

another friend of mine has a gsr and also complains that his vtec does not sound as loud as it should(no fart cannon)

explain