I just got some FI 300 cell installed and I think I am hearing rasp but it may not be rasp and something else. From the outside listening to the car rev, I dont hear any rasp at all, it sounds nice. But from the inside of the car, when im accelerating, I hear something that may be rasp...it sounds like something is rattling. They checked to make sure everything was tight and good to go too after I came back 5mins after i left the shop. Oh, I can hear it when the RPM is under 2k after a rev too but not RPM going up....its weird. I'll try to get some vids or sound clip up asap. But someone that may know what this is please chime in

 

Do reset your ECU. And my hfc gives me a rasp but not bad with nismo combo. + if you hear rattle, check inside of your hfc. Did you get them new ? or used ?

Here is my sound clip.

http://my350z.com/forum/intake-exhau...und-clips.html

 

dude....i hear the sound in ur first video, same sound as mine. Listen to the end of the rev....vroooom, then you hear a sound like air is is getting sucked in or something like that. Someone tell me that is normal please....

<a href="http://vids.myspace.com/index.cfm?fuseaction=vids.individual&videoid=43955 157">350z</a><br/><object width="425px" height="360px" ><param name="allowFullScreen" value="true"/><param name="movie" value="http://mediaservices.myspace.com/services/media/embed.aspx/m=43955157,t=1,mt=video"/><embed src="http://mediaservices.myspace.com/services/media/embed.aspx/m=43955157,t=1,mt=video" width="425" height="360" allowFullScreen="true" type="application/x-shockwave-flash"></embed></object>

 

do I need that U shaped piece in this picture? what is it for

 

^
With HFC, i will say, yes. Bolts on to bracket.

 

Normal and it turns out more nasty with TP ( non-resonated)

I call that for raspy. ( correct me if i'm wrong )lol

 

no need to freak out. Its normal.

 

def rasp but just very mild, when i had my test pipes on it sounded about 10x louder

 

The sound you hear at the end is back flow, not rasp.

 

what exhaust is that sounds great

 

alright, i figured it was normal somewhat. I hear a lot of back flow when im accelerating though. Overall, it sounds awesome!


I'll have a vid/sound clip later tonight with the Impul and FI HFC.

 

DC headers, UR ceramic HFC/AAM Y-pipe/nismo.

 

 

here it is.....

<object width="425" height="344"><param name="movie" value="http://www.youtube.com/v/t8iHqL5WlsA&color1=0xb1b1b1&color2=0xcfcfcf&fs=1"> </param><param name="allowFullScreen" value="true"></param><embed src="http://www.youtube.com/v/t8iHqL5WlsA&color1=0xb1b1b1&color2=0xcfcfcf&fs=1" type="application/x-shockwave-flash" allowfullscreen="true" width="425" height="344"></embed></object>

 

^ sounds awsome, love VQ sounding