Help! Vibrating Catback Exhaust

djpathfinder · 06-11-2010, 11:11 PM

Yeah, it definitely shouldn't sound like that (your youtube vid). We're assuming no damage was done to the exhaust manifolds or engine mounts while removing the stock cats? Did you visually inspect for any loose packing material/mesh inside the cats before installing?

Gunzero · 06-11-2010, 11:54 PM

That sucks man.. :/ hopefully you get your thing fixed. Mabuhay

Mike · 06-12-2010, 11:18 AM

i was talking about the brace that is in front of the back wheels. the pipes go over the brace.

bradz · 06-12-2010, 12:55 PM

Quote:

Originally Posted by djpathfinder

Yeah, it definitely shouldn't sound like that (your youtube vid). We're assuming no damage was done to the exhaust manifolds or engine mounts while removing the stock cats? Did you visually inspect for any loose packing material/mesh inside the cats before installing?

We tried to shake the whole pipe including the hfc and it is pretty solid. Yup I visually inspected the new cats before installation, everything was ok.

Quote:

Originally Posted by Mike

i was talking about the brace that is in front of the back wheels. the pipes go over the brace.

No Mike, nothing is hitting against something. The hfc including the midpipe just shakes at just 1800 rpm. Other rpm range is ok though. As soon as I passed by at that rpm range it vibrates/shakes the pipes.

Zsteve · 06-12-2010, 12:56 PM

put stock cats back on and see if it still does it. If not then its the HFCs, return them and go with another company or get a new set. My ERZ and FI CBE are doing great.

esfourteen · 06-12-2010, 01:01 PM

^^ agree, if nothing is touching and nothing is loose its probably a defect in the hfc

bradz · 06-13-2010, 01:37 PM

Quote:

Originally Posted by Gunzero

That sucks man.. :/ hopefully you get your thing fixed. Mabuhay

Hopefully men. Salamat

i will go back to the shop tomorrow.

Nitex · 06-14-2010, 10:04 AM

I am also having an exhaust rattle, other than the hiss on decel. Its fairly similar and seems to happen more often in the cold. Im hoping its just hitting the cross member. I still need to investigate, however i have Berk cats not ERZ, and stillen CBE.

bradz · 06-14-2010, 10:38 AM

Quote:

Originally Posted by Nitex

I am also having an exhaust rattle, other than the hiss on decel. Its fairly similar and seems to happen more often in the cold. Im hoping its just hitting the cross member. I still need to investigate, however i have Berk cats not ERZ, and stillen CBE.

Mine, vibrates and shakes at exactly 1800rpm. The hfc and the midpipe next to hfc is shaking like crazy that you can feel it inside the car and shift knob vibrates at that rpm level too.

bradz · 06-16-2010, 06:27 PM

Update: My mechanic put the two vibration damper from the stock y pipe between the pipe from the resonator of Invidia and Hfc and it helps a lot. I still have a little bit of vibration but it is tolerable now.

cptspeed · 06-16-2010, 07:28 PM

Missed you at the last meet. I am interested in the invidia and would like to hear it. Lets meet up sometime.

ArtVandaleigh · 06-16-2010, 10:55 PM

Do you know where he got those vibration dampers? I'd like to try a set of those on mine, my Y-pipe has some serious vibration and hissing on the flex joints... been driving me crazy.

efuseakay · 06-17-2010, 12:33 AM

Quote:

Originally Posted by ArtVandaleigh

Do you know where he got those vibration dampers? I'd like to try a set of those on mine, my Y-pipe has some serious vibration and hissing on the flex joints... been driving me crazy.

From the stock y-pipe...

bradz · 06-17-2010, 05:57 AM

Quote:

Originally Posted by cptspeed

Missed you at the last meet. I am interested in the invidia and would like to hear it. Lets meet up sometime.

I was working that weekend when you guys had a meet, that's why I didn't come. I am down for another meet again. Invidia won't let you down men. For their price, you can't beat that. By the cat-back itself, it is not loud enough for me but when I put some HFC it came alive (WOW) especially at WOT. It's just perfect. Some folks here had a review about Invidia read those too. Here's the video with hfc.

Quote:

Originally Posted by ArtVandaleigh

Do you know where he got those vibration dampers? I'd like to try a set of those on mine, my Y-pipe has some serious vibration and hissing on the flex joints... been driving me crazy.

You can't get those hiss go away men unless it is obnoxiously loud. Try to put those dampers and see what it can do. I am surely for sure it will help a lot. efuseakay answered your question

By the way, you can buy those online at Nissan parts

Quote:

Originally Posted by efuseakay

From the stock y-pipe...

Thanks men

06-11-2010, 11:11 PM	#16 (permalink)
djpathfinder A True Z Fanatic Join Date: Mar 2010 Location: Edmonton, Canada Posts: 12,910 Drives: 2012 GT-R BE Rep Power: 733	Yeah, it definitely shouldn't sound like that (your youtube vid). We're assuming no damage was done to the exhaust manifolds or engine mounts while removing the stock cats? Did you visually inspect for any loose packing material/mesh inside the cats before installing? __________________ 2012 GT-R Black Edition Jet Black 2010 370Z 40th Anniversary // SOLD

06-11-2010, 11:54 PM	#17 (permalink)
Gunzero Track Member Join Date: Oct 2009 Location: Texas Posts: 889 Drives: Nissan 370z Rep Power: 259	That sucks man.. :/ hopefully you get your thing fixed. Mabuhay __________________

06-12-2010, 11:18 AM	#18 (permalink)
Mike The370Z.com Sponsor Join Date: Jun 2009 Location: Loganville, GA Posts: 5,944 Drives: 370z Rep Power: 2186	i was talking about the brace that is in front of the back wheels. the pipes go over the brace. __________________ NISSAN: 75 280Z / 86 300ZX GLL /87 Sentra SE / 03 350Z / 23 Z Porsche: 93 968 / 23 Macan GTS / 93 968

06-12-2010, 12:56 PM	#20 (permalink)
Zsteve A True Z Fanatic Join Date: Sep 2009 Location: TX Posts: 3,298 Drives: the 2 balled club Rep Power: 22	put stock cats back on and see if it still does it. If not then its the HFCs, return them and go with another company or get a new set. My ERZ and FI CBE are doing great. __________________ 2010 LS3 C6 Silver coupe corvette

06-12-2010, 01:01 PM	#21 (permalink)
esfourteen A True Z Fanatic Join Date: Mar 2010 Location: LI, NY Posts: 1,375 Drives: 40th TT Rep Power: 18	^^ agree, if nothing is touching and nothing is loose its probably a defect in the hfc __________________ Build Thread \| GTM TT Install Thread \| Engine Build Thread

06-14-2010, 10:04 AM	#23 (permalink)
Nitex Track Member Join Date: Jan 2010 Location: Seattle Posts: 848 Drives: '13 GTI Stage 2 UNI Rep Power: 16	I am also having an exhaust rattle, other than the hiss on decel. Its fairly similar and seems to happen more often in the cold. Im hoping its just hitting the cross member. I still need to investigate, however i have Berk cats not ERZ, and stillen CBE. __________________ 2013 Drivers ED GTI \| Stage 2 Unitronic

06-16-2010, 06:27 PM	#25 (permalink)
bradz Enthusiast Member Join Date: Jul 2009 Location: Pinellas County Florida Posts: 348 Drives: 09' 370z MB 6spd Rep Power: 16	Update: My mechanic put the two vibration damper from the stock y pipe between the pipe from the resonator of Invidia and Hfc and it helps a lot. I still have a little bit of vibration but it is tolerable now.

06-16-2010, 07:28 PM	#26 (permalink)
cptspeed Track Member Join Date: Jul 2009 Location: tampa Posts: 799 Drives: 09 370z Rep Power: 17	Missed you at the last meet. I am interested in the invidia and would like to hear it. Lets meet up sometime.

06-16-2010, 10:55 PM	#27 (permalink)
ArtVandaleigh Base Member Join Date: Jan 2009 Location: NE Ohio Posts: 227 Drives: 09 PW 370Z Rep Power: 675	Do you know where he got those vibration dampers? I'd like to try a set of those on mine, my Y-pipe has some serious vibration and hissing on the flex joints... been driving me crazy.

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