Berk HFCs on Factory Nismo Exhaust *RASP*
 

Hey all,

First bolt-on on my nismo is the Berk HFCs and wondering if anyone has put this on their nismos with the factory exhaust. Reason I'm asking is that I am experiencing quite a bit of rasp under hard acceleration/revving and wondering if others have experienced this. Berk said that this is expected, no break-in period ; is it something ill just have to get used to? What are your experiences?

Thanks,

:confused:

i have rasp with the nismo factory exhaust and ERZ HFC's. the below is a video..it doesnt really capture the deepness of the exhaust thats awesome, but more so the rasp and decelleration hiss that i hate. from what ive posted elsewhere...

from 0-25 seconds, its a slow rev up until about 5-6k rpm. at 26 seconds or so im just jamming the throttle to the floor...the rattling (rasp) is very noticeable!

YouTube - IMG 0347

That is exactly how my car sounds!
My biggest pet peeve is to sound like a tin can driving down the road.

The rasp does diminish as the car warms up but I still notice it.

Are you just living with it? What are your plans?

Ive got berk hfc w the nismo exhaust and g3 intakes and no rasp.
Don't know what it's like w/o the intakes.

Thats so strange, then how is my install of the hfc different? Arg!

from what everyone on the boards has told me...the rasp does diminish once they "break in". itll become less noticeable as the miles rack up. im at about 2-300 miles since ive installed them, and they are less raspy, but i still do get that annoying sound on hard acceleration. im hoping it goes away within the next thousand miles.

others on the boards have told me to give it a month or so before i come to any hard conclusion on removing them as they have said their rasp has nearly disappeared. we'll see as time goes.. otherwise it sounds soooo nice :icon14:

Yea ill give it some time as well before i make the decision to remove em. I definitely like the sound other than the rasp...Thanks for your input! Appreciate it!.

:tiphat:

huh thats odd because i had no rasp aftr the Berks..hmm..

No rasp here either. (Berks with Nismo exhaust)

I was told that it may get louder as time goes one w/ the hfc, but so far, 3k miles or so, it still sounds the same... not loud, but deep.

i just listened to your clip. if your talking about that hissing during deceleration then thats not rasp.... poke a large hole in a hoonda exhaust and you have rasp. i have CNT test pipes and i have double that hiss.

during hard acceleration i hear more of what sounds like a sh1t load of air trying to rush out the restrictive nismo exhaust. no raspy, more air-y<< not a word i know.

I will be posting a video of what MY car sounds like. I don't mind the hiss on decell but its the metallic tinging/raspiness on hard accell that is buggin the absolute hell out of me. I do hear the air whoosh but it is accompanied by that tin can sound.

yeah def no tin can sound here. i would have ripped the TP's out if i heard that.

im guessing the video isnt capturing this tin can sound. im not really hearing it.

could it be your used to the deep rumble of a V8, and the mechanical sounding V6 is just dif to you?