mejiseike

whats the difference and dont they both go to the same place?

sorry im new haha

E55AMG2

iTrader: (4)

Headers :

Y-Pipe:

One makes power, the other makes noise. :-)

mejiseike

thanks for the pics haha

do they both go in at the same time?

E55AMG2

iTrader: (4)

Y pipe attaches to stock manifolds, Headers replace the manifolds entirely.

aackshun

iTrader: (3)

Just to clarify things, AMG did not post pics of the right exhaust for the 4th gen, they're just demonstrations to give you an idea.

And both make power, one just makes a little bit more than the other.

E55AMG2

iTrader: (4)

The y pipe is from a 6gen, didnt feel like digging. Y pipe makes very little power....headers, on the other hand, make quite a bit. Especially when you stick an 00VI on.

ChrisMan287

iTrader: (34)

For a 4th gen headers don't make much. Y-pipe is the real power gainer.

OP, get the header/y-pipe set off eBay.

modenaf1

iTrader: (3)

Not on the 4th gen. Unlike the 6th gen, the 4th gen pre-cats are in the y-pipe. Not only do the pre-cats exist but the y-pipe design to fit them in is very restrictive. Aftermarket y-pipes are easily one of the biggest bolt on power adders for the 4th gen next to the 00vi.

NmexMAX

iTrader: (22)

Here we go again.

E55AMG2

iTrader: (4)

Im aware of the precats location, as well as the crap design of the OEM Y. However, you can pick up another 10-12whp with headers over the Y pipe with a bit of Emanage Blue tuning. Im sure I could have done more with an 00vi and extended rev limit. You cant even come close with the Y pipe + E blue, as the stock manifolds dont flow nearly as well at high rpm. Toss in some cams and a PnP job and you'll see an even bigger difference. If OP doesnt intend to go that far, a Y pipe will be his best bet.

E55AMG2

iTrader: (4)

I miss your musk

NmexMAX

iTrader: (22)

Ditto

http://forums.maxima.org/4910467-post27.html

http://forums.maxima.org/6410498-post16.html

Been trying to convey this point these days too.

E55AMG2

iTrader: (4)

Preaching to teh choir, my good sir.

NmexMAX

iTrader: (22)

Just a hint little reminder "I'm on your side" .. and good troof.

E55AMG2

iTrader: (4)

Nice ninja edit, aackshun.

NmexMAX

iTrader: (22)

Flava_24/7

iTrader: (46)

Well by simply tuning you can pick up power without the headers and Y pipe, but for the money and time involved the Y pipe is still one of the best bangs for the buck i feel.
Its a simple swap over from OEM and the gains are there, and most have seen more then a simpl 1-3whp gain.
Yes, the headers make a bit more power but when a Y costs 200 vs the 600.00 for Cattman headers some may feel that extra power just isnt worth the extra cash.
To say the Y pipe just makes noise, is a bit misleading.

Curious, do you have the dyno or other documentation that shows the Y pipe and equal legnth header comparison showing the gains of before and after from the tuning?

adamsanders

iTrader: (12)

Isn't the Cattman headers/y pipe combo like $850 before shipping? I would look into getting some if they weren't so damn expensive. From what I read on here a few months back when I was thinking about buying some, they seem to just make the exhaust sound better. I don't recall any significant power gains for the headers.


Edited for grammar

max_dreamer

iTrader: (2)

ill find out in a few months when i get home if cattmans are worth the 900 *shipping and gaskets too*. but, in normal headers, a long tube vs shorty will give you a better power band up top, IIRC. the equal length y helps with sound, and the less restrictive design helps with power. cattmans are the closest to equal length that you can get. also the sizes in the tubing make for better power too... over all you should see a stronger top end with small gains throughout the power band. so you can get just the y with larger piping and smoother flow for a quick gain, or headers for sound and better overall numbers. you should see a smoother curve with the headers and y over stock. sorry, just rambling. im bored at work! so shoot me! lol

oh, and you can even make a stepping header design on some vehicles to tune for a different power band... thats instead of a single tube diameter on the whole header. ok im done now...

modenaf1

iTrader: (3)

OBX used to make a pretty good setup for the 2002-2003 Maxima that was equal length as well. Only real problem was you had to slightly grind away a bit of the center member for the flex section to fit. If you were willing to part with EGR, it worked in 4th gens too. If I recall, they used to go for 350ish. If only they were still being made.

NmexMAX

iTrader: (22)

Maybe I should clarify. Equal length headers (i.e. Cattmans)

It's been greatly debated, perhaps before your time, that that particular dyno showing the 19whp from a y-pipe is not the norm. Some blame the extreme CF of the 2 comparison runs.


I used to be just like you, and after I saw the 1-3 whp gain, I was not impressed. But those were the days when we never thought even the mighty 00VI could fit Here's proof. Look at my trolling

http://forums.maxima.org/showpost.ph...1&postcount=35 http://forums.maxima.org/showpost.ph...1&postcount=45 Look at me, eating my words. It could also be because of the fact that I'm now all for every ounce of power, almost to the point to say heck with the price. I suppose after a certain amount, that's the attitude we get.


Here's one comparison, again, the gains will be semi minimal vs stock, and we could sit here all day and way our tails and hope/pray someone will dyno both on the same car . But it will never happen. And if it does, I'll be happy.

But since I KNOW a y-pipe will NOT give a consistent near 20fwhp gain in 2 different cars, I will continue to argue this until someone shows me runfiles Although Stillens 1st gen Y may be the only candidate to nip close, but until then once again.

Here's one:

Mods: Greddy muffler vs Cattman headers + said muffler.

Give me a minute while I sift through the old threads for the other.

Flava_24/7

iTrader: (46)

Yes, we all know the equal legnth headers give gains over the aftermarket Y.
And most dynos Ive seen show the headers to give a 20+whp gain over stock.

http://forums.maxima.org/2428403-post51.html

Stephen Max's dyno even showed a 22+whp gain on his SCed setup
But the question is, how much of a gain is it over the aftermarket Y pipe?
We all know the Y pipe is not going to give the 20-25whp gain, especially after seeing the headers yeild these results. But I think its realistic to say its giving at least 8-10whp gain.
IF the Y pipe gains aretruly around 10whp, and the average gain of the headers is around 20whp Im sure most wont feel the price of 600.00 bucks above the Y pipe costs are worth the extra 10whp gained over the Y pipe.
For myself, and others who are looking to squeeze out as much power as possible thats not the case.

NmexMAX

iTrader: (22)

I have learned when modding a Maxima it is not worth it to weight out cost benefits.

And peak #'s never tell the real story.

MaxiIce96

I'm sure it's first rate china stock. Has anyone used one of these or had friends use them?


http://cgi.ebay.com/ebaymotors/1995-...#ht_3838wt_892

SImAxImA88

which headers are good, im pretty new at this and i dont want to get ebay headers.please message me

NmexMAX

iTrader: (22)

Cattman > all, but so is the price.

Flava_24/7

iTrader: (46)

Cattman has the best quality, although the pics of the new OBX headers have a similiar design, not sure how the fitment is though.

stamar

yes im interested in those as well. is there any test anywhere on the net?

neko

yea i was tryin to go for the obx headers as well!

aackshun

iTrader: (3)

After the fact update... my obx headers make a big difference in midrange over the y-pipe, I don't have dyno vs. dyno proof, just a but dyno and a few car owners than can see the difference though.

aic96max

iTrader: (12)

consider the following:1.are you paying for install on both, and even if not just based on labor time even if your own. 2. are you a dyno queen looking to squeeze the highest numbers n/a 3. is money , budget, bang for the buck an issue for you


cattman = best, but expensive, more labor intensive ($$ or time) for an added 15-20 whp over a regular 2.5 inch y pipe stock headers?? what about a custom 3 inch y pipe and still save 400-500 bucks almost enough for a 3" catback, honestly, having run a car with more than 20 whp over mines, you minus well shed a few pounds and pocket the money it wont be that serious.

tom ill post info on a 5.5 using 3.0 headers and a 2.5 budget y pipe and a 3" catback. way budget way to freeup some exhaust flow on that car.. the dyno will show the diff to what most do which is drop 800 bucks on headers and still run 2.5 catbacks,


so really you have to decide what you want and if money aint a thing, def go with full cattman,

aic96max

iTrader: (12)

search the threads, this has been pretty much beat to death by the looks of it

schmellyfart

iTrader: (46)

Those look nice

ChrisMan287

iTrader: (34)

Don't they look familiar?

silencecalls

iTrader: (2)

Interesting, so, so far the ideas are that the headers add more power then Y-pipe. However, how much power headers add when a stock y-pipe is installed vs how much they add with aftermarket y-pipe installed?

VQ'rInWLA

iTrader: (83)

I still wanna keep telling myself that these would fit an a32 with some modification. Question is, how much modification?

tigersharkdude

iTrader: (20)

can you even buy aftermarket headers and use the stock y-pipe. I dont know for certain, but I dont think you can

aackshun

iTrader: (3)

In my theory, yes the ebay/custom maxima headers can bolt up to the stock y-pipe (since a local here has mix/matched his setup, just using the ebay front manifold, stock rear, and ebay y-pipe, I think he had to re-do the flange for it to fit on the rear stock manifold though, because it doesn't line up quite right). And yes they will provide some sort of gains over the stock headers (not the world's greatest design).

But why ask this question? If you're going through the trouble of doing headers, why only put a stock Y-pipe back on? Which could take away the benefit of your headers?

schmellyfart

iTrader: (46)

I believe this is what you are looking for: http://forums.maxima.org/7796459-post5.html

I should have taken pics of the unmodified headers installed with the crossmember. But I think the crossmember will need some grinding near the front header flange, and some hope that the rest of that y pipe goes under/clears the crossmember.

Br0nz

hey this one adds a whole extra cylender per bank must be ++++HP!!!


http://cgi.ebay.com/ebaymotors/95-96-97-98-99-00-01-NISSAN-MAXIMA-R-EXHAUST-MANIFOLD-/150451781732?pt=Motors_Car_Truck_Parts_Accessories &fits=Make%3ANissan|Model%3AMaxima|Year%3A1998&has h=item2307a00064


lol