Rattling noise and replacing y-pipe

They are different Stu. A y-pipe from a RWD Fx will not fit on a AWD fx. Check the org I believe they may old threads on this subject.
 
Dr.2K said:
They are different Stu. A y-pipe from a RWD Fx will not fit on a AWD fx. Check the org I believe they may old threads on this subject.
Click to expand...
I will look. I assume it's a very small difference, because me and Keemo's y-pipes look identical in pictures.
 
So let me get this straight. Assuming we're talking RWD only, the Y pipes from G35 coupes and Zs are identical to ours?

Are the comlete exhaust systems interchangeable?

I read in one of the other threads that there is an extension involved (1 for the G, 2 for the Z)... where is this located in the system?
 
tdawg183 said:
So let me get this straight. Assuming we're talking RWD only, the Y pipes from G35 coupes and Zs are identical to ours?

Are the comlete exhaust systems interchangeable?

I read in one of the other threads that there is an extension involved (1 for the G, 2 for the Z)... where is this located in the system?
Click to expand...
Not identical, but will fit. Look at the picture I put up with the z y-pipe next to an HR y-pipe. That HR y looks almost exactly like my y, and I'm RWD.
 
Here is a follow-up post by OP. I went to dealershop and they said it comes from hit-shield which is welded to y-pipe. OEM AWD y-pipe is soooooo expensive $650.
and I doubt that it will be gone if I replace y-pipe.
 
Just get a Kakumei Y-Pipe for FX35. I don't think the heatshield will matter much. If you really want a heat shield, you can always bring the old pipe to the muffler shop and ask the guy to cut the old heatshield off and weld to the new aftermarket y-pipe. I believe it will still be cheaper than $900 from the stealership. I think the one for G37 will work for ours (from the picture I saw on Ebay, they look pretty much identical to the Kakumei for FX35). But you should check with the vendor. There is Kakumei motor sport on ebay if you can't find it anywhere. Check with the vendor first.
 
God!!! my terrible English.... heatshield... not hitshield.... I'm only focusing on spell 'shield' not trying to make typo 'sheild'. Anyway.... Does it mean that I donot need the heatshield? As I heard, heatshield is welded to OEM y-pipe. Kakumei does not have heatshield? I'm curious about what heatshield exactly does.
 
Last edited:
tubeFX said:
God!!! my terrible English.... heatshield... not hitshield.... I'm only focusing on spell 'shield' not trying to make typo 'sheild'. Anyway.... Does it mean that I donot need the heatshield? As I heard, heatshield is welded to OEM y-pipe. Kakumei does not have heatshield? I'm curious about what heatshield exactly does.
Click to expand...

Looks like the after market Y pipes dont have heat shields so you propably dont need them. I just installed some HFC's and am getting some rattling, got to check these heat shields now
 
jzfx35 said:
So does a y pipe for a g35, g35x, g37, 350z,370z fit a 05 AWD FX35? some say yes and some say no.
Click to expand...

No. They do not fit on AWD FX35 (03-08). They will only fit on the RWD FX35. However, you can do modification on the pipe length to make it fit. If you want to save the hassle, just go get a Kakumei Y-Pipe for FX35 AWD on ebay. It's good quality and for sure fit.
 
i have a similar problem but on when i start up when its cold for like 10 seconds i get a rattle sound from under the car then it stops if i step on the gas slightly i could hear it...but after the car is fully warmed up the noise is gone any feed back on this would be appreciated
 
The same thing happens to me most of the time too. It's most likely the heat shield either needs to be removed or re-soldered on by a muffler shop I think.
 
You can get OEM NISMO exhaust hangers or polyurethane hangers and try that too. They are much stiffer than OEM.
 
You must log in or register to reply here.
Back
Top