HFC really helps bring out some sound life to the Z. So due down pipes of course, if u can stand the smell. But after installing the Berk HFC using Ramps (no room under the car, barley squeeze under it with stock suspension) & doing it all buy my self (FML). Not to mention having a Cat back exhaust on the car already (have to remove the Y pipe on most aftermarket) I can truly say it was a bitch. No question...A whore like no other. But well worth it when you put her in her place and get it done. Glad that **** is done.
