long tube headers

Akrobatik · 07-14-2014, 11:52 AM

I have the ark grip exhaust and the fast intentions long tube headers. When I go full throttle it sound like the headers are vibrating on something or sound like they might fall off. Even tho they dont hit anything and are on tight as hell. Is this normal?

LostSol · 07-14-2014, 11:56 AM

It's probably the exhaust hitting the crossmember

Akrobatik · 07-17-2014, 01:44 PM

crossmember? i think i took that off when i took off the stock cats...

theDreamer · 07-17-2014, 01:46 PM

I believe it might be this crossmember:

Akrobatik · 07-17-2014, 01:58 PM

ahhh ok yea. Probably stick some rubber pad in there.

theDreamer · 07-17-2014, 02:00 PM

I would check to make sure all your hangers are in properly, one could have gotten lose.
There are a couple threads on here about the exhaust hitting that. Mine recently did because something to under my car and bent it and the shop bent it back so that could be an option.

LostSol · 07-17-2014, 02:08 PM

its an easy fix. Loosen all the connections on the exhaust, then take a jack and jack up the center section until its an inch off that cross member. Now tighten the exhaust starting at the header end and working backwards. ONce its all tight, remove the jack, and the exhaust will stay 1/2" or so off the crossmember.

Akrobatik · 07-21-2014, 02:16 PM

It was actually the left O2 sensor hitting the heat shield. I took the heat shield off and all good now. For some reason the left sensor sticks upword more then the left side one. I think during fabrication it was slightly distorted during welding. Still think they could of turned them down another half an inch for sure.

ANMVQ · 07-21-2014, 03:41 PM

Glad you found out the noise.

07-14-2014, 11:52 AM	#1 (permalink)
Akrobatik Base Member Join Date: Apr 2013 Location: Attleboro, MA Posts: 75 Drives: 2011 370Z White Rep Power: 12	long tube headers I have the ark grip exhaust and the fast intentions long tube headers. When I go full throttle it sound like the headers are vibrating on something or sound like they might fall off. Even tho they dont hit anything and are on tight as hell. Is this normal?

07-14-2014, 11:56 AM	#2 (permalink)
LostSol Premium Member Join Date: Jan 2013 Location: Orlando Posts: 1,021 Drives: 2010 370z 40th A.E. Rep Power: 15	It's probably the exhaust hitting the crossmember Akrobatik likes this. __________________ 2010 Nissan 370Z 40th Anniversary Edition #762/1000 \| Forgestar \| Michelin \| Swift \| TRS \| Z Speed \| ARK \| Z1 \| Hawk \| CFE \| Evo-R \| GTMat \| Stillen \| Seibon \| Whiteline \| Pioneer \|

07-17-2014, 01:46 PM	#4 (permalink)
theDreamer A True Z Fanatic Join Date: Feb 2009 Location: Texas Posts: 30,879 Drives: 370z Rep Power: 4210	I believe it might be this crossmember: Akrobatik likes this. __________________ theDreamer's Z // Fast Intentions // Uprev // GTM // HKS // TEIN theDreamer's Silvia // URAS // GREDDY Houston Zs // Facebook // Twitter // Instagram

07-17-2014, 02:00 PM	#6 (permalink)
theDreamer A True Z Fanatic Join Date: Feb 2009 Location: Texas Posts: 30,879 Drives: 370z Rep Power: 4210	I would check to make sure all your hangers are in properly, one could have gotten lose. There are a couple threads on here about the exhaust hitting that. Mine recently did because something to under my car and bent it and the shop bent it back so that could be an option. __________________ theDreamer's Z // Fast Intentions // Uprev // GTM // HKS // TEIN theDreamer's Silvia // URAS // GREDDY Houston Zs // Facebook // Twitter // Instagram

07-17-2014, 02:08 PM	#7 (permalink)
LostSol Premium Member Join Date: Jan 2013 Location: Orlando Posts: 1,021 Drives: 2010 370z 40th A.E. Rep Power: 15	its an easy fix. Loosen all the connections on the exhaust, then take a jack and jack up the center section until its an inch off that cross member. Now tighten the exhaust starting at the header end and working backwards. ONce its all tight, remove the jack, and the exhaust will stay 1/2" or so off the crossmember. __________________ 2010 Nissan 370Z 40th Anniversary Edition #762/1000 \| Forgestar \| Michelin \| Swift \| TRS \| Z Speed \| ARK \| Z1 \| Hawk \| CFE \| Evo-R \| GTMat \| Stillen \| Seibon \| Whiteline \| Pioneer \|

07-17-2014, 01:44 PM	#3 (permalink)
Akrobatik Base Member Join Date: Apr 2013 Location: Attleboro, MA Posts: 75 Drives: 2011 370Z White Rep Power: 12	crossmember? i think i took that off when i took off the stock cats...

07-17-2014, 01:58 PM	#5 (permalink)
Akrobatik Base Member Join Date: Apr 2013 Location: Attleboro, MA Posts: 75 Drives: 2011 370Z White Rep Power: 12	ahhh ok yea. Probably stick some rubber pad in there.

07-21-2014, 02:16 PM	#8 (permalink)
Akrobatik Base Member Join Date: Apr 2013 Location: Attleboro, MA Posts: 75 Drives: 2011 370Z White Rep Power: 12	It was actually the left O2 sensor hitting the heat shield. I took the heat shield off and all good now. For some reason the left sensor sticks upword more then the left side one. I think during fabrication it was slightly distorted during welding. Still think they could of turned them down another half an inch for sure.

07-21-2014, 03:41 PM	#9 (permalink)
ANMVQ A True Z Fanatic Join Date: Mar 2011 Location: Framingham MA Posts: 2,732 Drives: 2014 Q50 AWD Rep Power: 19	Glad you found out the noise. __________________ 14 Q50 AWD, ARK, ECUTEK (SEB), Takda,

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