why is nobody running these headers??
 

http://image.nengun.com/catalogue/or...ld_special.png


5zigen - EXM-SP - Exhaust Manifold Special - Nengun Performance

i saw these and was instantly like

http://www.pearldrummersforum.com/at...1&d=1330501271

anyone heard of anybody trying these out?

There was a set for sale a few weeks ago. They never installed them though. Problem is they are short tube headers that cost $300 more then longtube PPE headers. Longtubes = more power then short tubes. Only short tubes proven to make power close to the longtube headers is the Momentum headers. For the price, I dunno who wants to the guinea pig on these. Also, waiting time is a month on the 5zigen if not longer as they are made to order. Looks cool but its hidden anyways so not worth it, even for aesthetics.

Yeah, $1500 shorties with the same crappy collector design as the Stillens.

wow imagine the labor involved with all those pie cuts

Yeah I think it's just price that holds people back. Only website I've found these on sells them for $1900 and there aren't any dyno numbers on it from forum members. Those momentum headers were half the cost and produced great results. I'd love to see what these can do but $1500-$2000 for something untested... That could go to a lot of other mods

i almost just wanna hang em on my wall lol

Yeah or make like a top gear coffee table out of them, they do look amazing

if i remember correctly, those momentum header were in the 1500-2000$ price range before they (ditched them or bankcrupt)

Better yet a bong would pretty bad ***.

:bowrofl:

Why does the flange have 5 holes? Are all our headers like that?

ergo the $$$$ they charge for it.

Where do you see 5 holes? I see 3 on the flange to the cat and 8 to the block.

Japanese companies have an insane addiction for quality, so they'll create good products for $$ without the most power gains. I have no doubt these are good, but they're not for most

Wanne bet? I'd do some more research here. Momentum headers have been blowing everyone out of the water. You must be comparing to the other crappy headers out there.

I was referring to the large holes on the flange that connects to the block. But now that i can see a lil better than my phone was allowing, i see they are just open places between each header

Chris, they haven't been blowing longtubes out of the water... Every other shorty, definitely.

No one has done a direct comparison to the PPE stepped headers, but the results have been comparable, sort of. My 326-330whp is with the PPEs on an OEM exhaust system... We'll see what they do with the fast intentions exhaust in May.

First mod: PPE Headers... +35WHP

Look up that thread. They seem to be on par if not better.

Cost to HP

Spohn....I understand that but as seeing as they aren't readily available, I don't count them so yes, as you determined I am comparing it to the other shorty headers out there. I mean look at my sig.....I'm running momentum headers :rolleyes:

:tup:

That a good power gain.

Didn't those momentum headers cost you around 800 plus TPs?

Even if they were 600 plus TP's, you're still damned close to the cost of the PPE's.

And you can't really get momentums if you don't already have them so... yeah.

If it works, it works. That's what I say.

Sure there is...

http://www.the370z.com/tuning/64662-...k-exhaust.html

I paid like 500 for my headers, and brand new test pipes at Z1 were 140. I thought PPE LTH were over 1k? Even if they were 600, plus tps, its still cheaper. Keep in mind the use the old DE 350 style test pipe/cat and is much cheaper than the 370 counterpart

500 for your headers? Where'd you get that deal they were 800 through z1 I'd love to get that deal

Z1 ran out of them. So i had to do some searching... ;-) Got them used

I bought my PPE's with black ceramic coating used (but never used) for $750... shipped.

I got my Momentum headers for $450 from an army guy here on the island. He sold his G35 and bought a G37 sedan. I told him they would fit but he just wanted a nice car instead of a race car lol.

I don't see in that thread where they tested a car with PPE Longtubes and then put momentums + TP's and tested again?

I'll say that the 30whp I gained with the PPE's and exhaust untuned is a good indicator of it's performance. There was no break in or learning period, it was installed and dyno'd immediately after. Every Momentum header dyno I've seen has been tuned. I think the whole argument is nonsense though. We are fighting over peak numbers and haven't even looked at the rest. Both the PPE and Momentum collector are very similar. The other differences are the stepped design and physical length of the pipes before merging. PPE's are matched to the RPM of the engine. Momentum headers are amazing though, I'm just have a difficult time believing that it would outperform the PPE's given the same conditions.

i would like to see a dyno chart of a car running test pipes, cat back, and tuned. THEN see how much hp the ppe headers can add (tuned again of course)

basically, i like the headers, but don't know if i will see much gain over the 326whp i am currently seeing with stock headers and tp's

I understand, and all dynos read different. They are both good products, and both seems to produce like numbers. It wouldn't surprise me in the least if some of the hype for momentum was due to the fact of left over inventory... Either way they both make power over stock, and the end result is :driving:.

I was not trying to cause strife, just pointing out that the momentums make close to the same gains if not equal to ppe. And lets face it. A tune does wonders for throttle response and the drive. But again we are talking peak HP (which honestly doesn't mean anything) torque should be the only thing people are concerned about as it is what makes your car "fast". Anyway, i have only ever seen a tune turn up an extra 3-8 peak WHP on our cars. We will have a better idea when i get my car on the dyno before and after tune.

.....My dyno before and after tune. Tuning was done at 9pm at night so it was cool out and weather did not vary between the 2 1/2 hours of tuning. I was the first 370z hes ever tuned so its not a great graph. Gains are good and even throughout the powerband. Just needs to smooth it out.

http://i184.photobucket.com/albums/x...ps6a39da07.jpg

I stand corrected! Thanks for the info

No problem. You should get pretty significant gains from a tune also with all the mods you have done. Probably doing like mine was and just running stupid rich with a forced 10.5:1 AFR for safe mode. Your gains will probably be better then mine with a more knowledgable tuner. Like I said, I was his first 370 hes ever tuned.

question:

what kinda whp gain do u guys think i could pick up by switching to ppe headers + tune given my curent setup is cbe + test pipes + tune?

Well I would say from what I have seen at least 20whp with your current setup and adding PPE lth and a tune

Oh wait, didnt see your test pipes. I would say 12-20 expected with no disappointment

Lol I am throwing out such a broad number that I cant be wrong!!!