if it has any tune then you have to run premium octane gas, factory I guess you did not have to, which is surprising.
I have the Forge BPV on mine and you can hear it but with our factory air boxes not much! if you relocate the BPV with aftermarket pipes then you can hear it more I believe. some people have put spacers in the airbox lid to get more sound, but you may get a code thrown as some here have
I took my lid off in the summer and it is really noticable, but then I was sucking in hot air/heat soak from the engine so I dont really recommend it