Headers

I wasn't aware of ANY headers not fitting the FX... we have more room in that area than the G's and Z's, or so I thought.

I forget which headers are equal-length... I believe the Crawford, Strup and DC were all equal-length tubes.

I can also vouch the fact that the G and Z Stillen Headers will fit an FX35. They may very well be different headers though, ever consider that? We do have more room, so maybe Stillen has utilized this extra room to make FX headers that will not fit the Z's or G's? Might be something to consider/ask about.
 
Cube said:
I wasn't aware of ANY headers not fitting the FX... we have more room in that area than the G's and Z's, or so I thought.

I forget which headers are equal-length... I believe the Crawford, Strup and DC were all equal-length tubes.

I can also vouch the fact that the G and Z Stillen Headers will fit an FX35. They may very well be different headers though, ever consider that? We do have more room, so maybe Stillen has utilized this extra room to make FX headers that will not fit the Z's or G's? Might be something to consider/ask about.
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the "claims" on the dyno from stillen are the same between the headers. i thought all the headers will fit too but someone asked crawford and they said no. id rather not get a set of $900 headers just to find out they dont fit lol
 
turbocad6 said:
like what? I guess the nismo's are the best?

I was thinking of just ordering the stillen exhaust & getting it over with & I thought of just getting the headers from them too. makes you think twice of even dealing with a company that'll rip you off like that really...
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When I got my Stillens I got a deal for $1000 installed. Contact PaulGT2 on my350z. He has good relationships with Stillen. If you don't want to do the install yourself, Scott @ Ballistic is a great guy. They're both in NH. Installing headers can be a b!tch and Scott told me that there's not much difference in space between a 350z and fx35 for headers.. I don't think Crawfords will fit..
 
do you know if your stillens are G headers are they the fx specific part # they have? I'd hate to try & be a know it all & order the cheaper G headers just to find out there are issues:tongue:

the stillens are equal length headers & can't be bad, at there sale price they do seem like a deal & stillen should at least be quality stuff I would think...
 
turbocad6 said:
do you know if your stillens are G headers are they the fx specific part # they have? I'd hate to try & be a know it all & order the cheaper G headers just to find out there are issues:tongue:

the stillens are equal length headers & can't be bad, at there sale price they do seem like a deal & stillen should at least be quality stuff I would think...
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I believe mine are FX headers. I knew about G headers fitting FX and asked them and if they didn't lie to me, mine should be the FX version. The thing is, many people say they're the same.. There was actually one person on the .org that bought the G headers from Stillen and fitted it into his FX. Do a search for it, should be easy to find..

As for Stillens' performance: There's a definite bump in power after 3500 rpms and that bump is big enough.. Bigger than what I got with the MD spacer when I first installed it. The only annoying thing is that there's a 1/2 second bump in revs about 4500 rpms that you hear. It revs up and down again in milliseconds without changing the power or anything.. It was actually discussed in the .org again.. Stillen's power claims depend on that bump. They claim more than 20-25 hp gain but that's not true. That instant bump virtually provides that power on the dyno but not on the road.

Their performance (and sound) on NA is very good. I was planning on recording its sound today after work for Ray in the .org. If it comes up good, I'll post it here as well.. It's performance should be even better with your LMS supercharger..
 
well, I just ordered stillens ss g headers & ss test pipes & the whole stillen fx exhaust... I guess well know for sure if they fit the same now:tongue:

thanks guys for all the help, I saved $200 over there fx headers...
 
they make them for the g... didn't say they are resonated... couldn't put headers & exhaust with stock cats... I may get cats eventually or weld cats into these testpipes, figured there worth it even for the flanges & the bends even.... the stillen exhaust has the x & 2 resonators, so maybe it won't be so bad.... well see, hope it don't sound like a little rice rocket :biggrin:
 
anyone know of any write-ups on installing headers... im looking into it and want to know how difficult its gonna be to do this myself... is it straight forward remove bolts from both sides and swap out... or are there things in the way that you have to remove to get to the manifold...
 
awesome... dont need a crazy write-up (wouldnt mind since neither site has one) just want to know any crazy obstacles like have to remove alternator and 3 sway bars type stuff
 
ok, install is not happening this week, maybe next... stillen screwed up my exhaust order big time & now I won't have the exhaust till end of next week... I really kinda wanted to do it all togeather... I did take a bit of a peek though & it looks like a lot of fun to get these headers in there.... anyone know if there is a gasket used in the manifold to head... headers came with none...
 
well, I installed my headers & test pipes last night... made the mistake of starting them at around 5:30 pm, didn't lock up the shop till 2:30 am, what a bitch:err:...

2 things,

first of all this is not a job for an average hobbiest, not by a long shot... this is a job for a real mechanic. it is a bitch of a job on a lift, without a lift it would be a suicide mission... swapping out both exhaust manifolds is in the labor guide at 5.5 hours... well, that would be ok for just reinstalling oe manifolds, but with the headers going back in the bolts are much harder to get at with bigger pipes wrapping around & blocking bolts... it took me around 7 hours start to finish actual labor, there was the beers & late night slacking factor to consider too, but it is a job no matter how you look at it... you do need a good selection of tools & the bolts are all very tight... you also need to make them very tight upon reinstallation... also you can remove the drivers side manifold no problem, but the header doesn't fit back in without loosening the rack & pinion for a little more clearance to be able to fit the header in...

second thing is, test pipes are way to loud & annoying... maybe not so much loud as it is very raspy, at a certain frequency the exhaust has a tinny rattling vibrating sound that is just awful... my fx now sounds like one of those little ricers with the big fart can's out back... gotta get cats imediatley... sounds so bad I don't even want to drive it...

I will try to put up a general guide to installing headers but I didn't take too many photo's & honestly, this install is more the kind of thing that if you really need a guide then you shouldn't be installing these headers yourself in the first place... after doing it once I think I could do another in maybe 6 hours, especially without the beers:tongue:

I wouldn't suggest anyone tries this install without a lift at least, it's not that it would be impossible, but it would turn a difficult job into a really monumental task at best... if your really ambishious & have a few days to kill you can do them without a lift, but I wouldn't even want to try that myself:smile:
 
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