Originally Posted by TROOPER

Well Berk seems to be the brand of choice I've noticed on here.

My only concern with playing with the Nismo exhaust, is that I understand most of the HP gains over the base Z's is the Nismo exhaust system.

So although my goal is not really HP gains but more growl,
I also don't want to lose HP in the process.

And a side note, are the Berk HFC the same part number for both base model and nismo?