Header information?

Nissan 350z / Nissan 370z general community discussion forum
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flyguy2618
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Car: 06 nissan 350Z

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Hey im thinking about getting a set of Stillin Stainless Steel Headers for my 06 Z in the near future and just had a few questions about them. First since i dont think i have the tools to install them how long do you think it would take to install a set if i took it to nissan dealer or another shop, is it a long process? Also will they affect my car in any negative ways and do they really lower your gas milage by alot? My last question is in the furture when i decide to do more mods on my exhaust system will they be compadable with most other systems or do they only work with other stillen parts. If anyone has anything else to add that ive forgotten or has any experience with headers in general i can use all the information i can get. Thanks.


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flyguy2618
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O almost forgot, i was also wondering what they do for the sound, Will they make it sound more agressive while still maintaining that agressive Z sound? What will they do for the sound?

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504 350z
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Car: 2007 black 350z

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flyguy2618 wrote:Hey im thinking about getting a set of Stillin Stainless Steel Headers for my 06 Z in the near future and just had a few questions about them. First since i dont think i have the tools to install them how long do you think it would take to install a set if i took it to nissan dealer or another shop, is it a long process? Also will they affect my car in any negative ways and do they really lower your gas milage by alot? My last question is in the furture when i decide to do more mods on my exhaust system will they be compadable with most other systems or do they only work with other stillen parts. If anyone has anything else to add that ive forgotten or has any experience with headers in general i can use all the information i can get. Thanks.
from what i have read, they are a pain in the a** to put on. some where around 3-4 hrs, but worth the time and money for the upgrade. ck out dc sports headers. i'm planing on going that route in the future, but want to get the headers, hi-flow cats and exhaust all done at the sametime.

NSRsheets
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I have also heard they are a pain to put on. A good upgrade if your planning on going the n/a route. If you plan some forced induction I wouldn't bother with them. They should bolt up to any catback exhaust. They will decrease your gas mileage a little and the sound is a lot better and deeper.

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flyguy2618
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NSRsheets wrote:I have also heard they are a pain to put on. A good upgrade if your planning on going the n/a route. If you plan some forced induction I wouldn't bother with them. They should bolt up to any catback exhaust. They will decrease your gas mileage a little and the sound is a lot better and deeper.
That sounds like exactly what i want power and a even more agressive but still Z sound. But when you say it decreases my gas mileage do you mean by 2 or 3 MPG or do you mean more like it cuts your gas mileage in half?

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WalkerT
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It took me 8 hours the do the install the gain were worth it. I do not recommend it if you dont have a great knowledge of car maintenace. It is not easy.

BackIntoAnS13
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I have also read that it takes up to 8-11 hours. And this is coming from ppl that know how to work on cars. I wouldnt take it to a Nissan dealership if at all possible, they will charge you by the hour and there not cheap. If you can do it yourself i would plan a weekend ahead and do them yourself. I myself am going with strup headers. Best header for our cars from what ive heard. $450 shipped if i remembered. 12-15 horsepower and 15-20 lbs. of torque gained. Check em out

strup.us

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flyguy2618
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wantaRHD180sx wrote:I have also read that it takes up to 8-11 hours. And this is coming from ppl that know how to work on cars. I wouldnt take it to a Nissan dealership if at all possible, they will charge you by the hour and there not cheap. If you can do it yourself i would plan a weekend ahead and do them yourself. I myself am going with strup headers. Best header for our cars from what ive heard. $450 shipped if i remembered. 12-15 horsepower and 15-20 lbs. of torque gained. Check em out

strup.us
Hey wantaRHD180sx i checked out that web site and the strup headers and i have to tell you they do look great so thanks alot for turrning me on to them because now i have more of a decision to make. Should i get Strup or Stillen headers i think im almost leaning more twards strup now but the only thing that i am wondering is why if they are better headers are thay 200-300 dollars less than the stillen ones? I think to s certan point i believe the you get what you pay for thing so why such a difference for something that clames to be a better product. Also i was thinking about in the future also going with stillen high flow cats and a Stillen True dual exhaust by this summer. Do you think it would be better or more benneficial to keep the whole system all stillen products or do you still think that Strup is the way to go for headers?

BackIntoAnS13
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I know what you are saying when you would like to keep everything one brand. Im the same way too but from everybody that comments on the Strup headers there "THE BEST" I too believe in you get what you paid for but if you go to the website there MSRP is $758 but there selling them for 450 so initially there an expensive header. The reason why i want em is because unlike most of the headers for the Z there polished and the others are ceramic, I just personally want that for the look and second they give the most HP then any other header that ive seen. I too was also thinking of getting stillen at one point but i think the only thing i MIGHT get from stillen is there true dual exhaust. Either way i heard headers make a night and day differnece on our cars

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flyguy2618
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That sounds awsome and i just got back on the website and noticed that they are marked down so im not to worried about that. Im pretty sure these are what im going to be getting when i get some. But thanks alot for all the information and for turning me on to these headers it really helped alot.

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flyguy2618
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Hey i was just looking on this website and came across one final question i have. Here is the website i was on "http://www.350z-tech.com" under the exhaust overview section i found an article on headers and the current exhaust manafold, here is what the article said........

"The V configuration of the VQ35 series engine produces dual exhaust exits (3 cylinders per side). Nissan has included standard heat shielded exhaust manifolds on the 350Z and G35. Accessing the exhaust manifolds is not an easy task. The cramped quarters of the engine bay coupled with some awkward bolt location provide for a rather tough job when pulling or installing exhaust headers or any type on the VQ35. For those wanting to maximize engine performance in Naturally Aspirated form, headers can be purchased and installed in place of the standard manifolds. Take note that none of the aftermarket headers provide head shielding so header wrap or custom heat shields may be beneficial."

The part i was wondering about is the part that i bolded about heat shielding? What i was wondering is what does this do and is it neccesary? or will not doing it be ok while still not setting my engine up to fail in the future?


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RED_DET
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Just wrap the new headers with heat wrap before you install them. It will keep underhood temps down, which is basically the concept of the heat shield.

BackIntoAnS13
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Yeah just wrap them up if its gonna bother you. I might do the same lol

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504 350z
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RED_DET wrote:Just wrap the new headers with heat wrap before you install them. It will keep underhood temps down, which is basically the concept of the heat shield.
i found this on the net about header wraps, is there any truth to this? go to this link and let me know what you think...........http://www.centuryperformance.com/heatwraps.asp

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samej82
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F1 needs to rebuild their motors often. I'm sure it's the same with nascar..

Something else to consider is that the wrap is heat resistant, means it's not going to get hotter than the exhaust header, and the header won't get to the point where it starts to melt away. So while the wrap may keep the pipe hotter longer,but it would also keep the pipe from cooler slower.. which i think is a good thing.. metal that is heated and rapidly cooled tend to malform and crack.

if your going to race your car expect to replace parts often, regardless or wrappingbut if it's just a once in a while thing the wrap may be beneficial to you and extend the life of your parts.

btw avoid puddles!
Modified by samej82 at 7:44 AM 2/15/2008

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504 350z
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samej82 wrote:F1 needs to rebuild their motors often. I'm sure it's the same with nascar..

Something else to consider is that the wrap is heat resistant, means it's not going to get hotter than the exhaust header, and the header won't get to the point where it starts to melt away. So while the wrap may keep the pipe hotter longer,but it would also keep the pipe from cooler slower.. which i think is a good thing.. metal that is heated and rapidly cooled tend to malform and crack.

if your going to race your car expect to replace parts often, regardless or wrappingbut if it's just a once in a while thing the wrap may be beneficial to you and extend the life of your parts.

btw avoid puddles!

Modified by samej82 at 7:44 AM 2/15/2008
samej82,do me a favor and look at this site...jet-hot.com and tell me what you think. i contacted them and they said around $225.00 to coat the headers. would this be a better option than the wrap? is it even worth the money?

NSRsheets
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flyguy2618 wrote:
That sounds like exactly what i want power and a even more agressive but still Z sound. But when you say it decreases my gas mileage do you mean by 2 or 3 MPG or do you mean more like it cuts your gas mileage in half?
It won't cut it in half. Most likely at the most 5mpg.

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flyguy2618
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Hey NSRsheets sounds good thanks for the input.


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