DNP Tubular header

[D's GS-T]

Quick question,
I was wondering if the DNP tubular header will work with a FP green, and if so is it worth the money, or are there better options.

 

[SosaPerformance]

Quick question,
I was wondering if the DNP tubular header will work with a FP green, and if so is it worth the money, or are there better options.

For the money they are worth it in my opinion. I have one on my car and havent had any problems with it as far as cracking or turbo placement.

 

[90talontsi90]

Yes they work great and as long as you don't get a T3 or a T4 flange on there then it will work for your Green. BUT I'd subjest FP's new manifold instead of the tubular just because they will crack, it's just a matter of when. The FP manifold is designed for they're 30 series housing but it will still do great on your 50 trim, Also an option for you is to just port what you got. The 2nd gen exhaust manifolds are great at what they do, won't be a restiction for a LONG time.

 

[CTP]

DNP manifolds are SSautochrome/XSpower EBay junk. The only difference is that they charge 4x as much for them so everyone thinks they're great. Proper tubular manifolds will not crack, however, 18 gauge steal garbage like the DNP's will most definitely crack in a short period of time. Not to mention the fact that the runners are significantly smaller than the head ports.

If you aren't able to buy a proper tubular, don't buy one at all. It'll only result in headaches.

 

[JusMX141]

Quick question,
I was wondering if the DNP tubular header will work with a FP green, and if so is it worth the money, or are there better options.

I highly recommend the FP Race Manifold for your application.

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It costs less than the DNP, will flow more than that DNP, it's more durable than the DNP, and is designed by FP with their turbochargers in mind.

 

[D's GS-T]

Thanks A lot guys, I will probably Go woith the forced performance race manifold if it is better, plus when I order everything I can then have it show up at my door at the same time.

 

[CTP]

will flow more than that DNP

You base that on what, aside from FP's own claims (which of course would NEVER be biased)?

 

[tkelly27]

I say the FP manifold too. It's like $180 with the group buy going on. For the $$ you'd spend on a DNP you can get it, and injectors, or something else for $200 and go much faster. They are a nice piece, and weather or not they will flow more than a tubular header is moot. People run 9's on 2g manifolds and this is a significant upgrade over a 2g manifold.

 

[CTP]

this is a significant upgrade over a 2g manifold.

Again, you base that on what?

I'm not saying it's necessary wrong, but the DSM community has this horrible habit of believing anything that any big name company says simply because they said it. Where's the data that says it outflows a DNP or a 2G manifold? Does a back to back dyno test even exist?

 

[turbosax2]

This is the best we got as far as I know:

http://www.dsmtuners.com/forums/bolt-tech/278255-fp-race-mani-actual-test-data.html
WI-DSM.com :: View topic - FP Race mani

 

[JusMX141]

You base that on what, aside from FP's own claims (which of course would NEVER be biased)?

The fact that the runners and collector are larger on the FP mani, and the fact that we recently pulled an SS Autochrome / DNP Copy off my buddy's 2G (who runs an FP Green) and replaced it with a ported MHI EvoIII manifold and the car now makes more power everywhere with a cast manifold than it did with the tubular header. Underhood temps also went down a ton.

You can't argue with power.

Maybe a SSAC/DNP tubular makes more power than a stock unported DSM Mani, but I find it hard to believe that they'd outshine an EvoIII/Ported 2G manifold.

 

[D's GS-T]

What if I just go ahead and port my 2nd gen manifold, would that be enought. it sounds like the stock manifold ported works pretty good as well. Also what are some other good tubular headers that are effective. I will probably go with the FP manifold, but i figured i would ask.

 

[CTP]

This is the best we got as far as I know:

http://www.dsmtuners.com/forums/bolt-tech/278255-fp-race-mani-actual-test-data.html
WI-DSM.com :: View topic - FP Race mani

That's pretty lame. Some guy's DSMlink estimated HP logs and a bunch of people saying, "Yea, it felt great." Sucks that no one has done a back to back dyno test. I'd like to see a test of stock 2g vs. ported 2g vs. FP crap vs. a real SLS tubular. That would put that whole "zgzgz it's ported!!!1111!" thing to rest and it'd also end the misconception everyone seems to have been dupped into having that a cast manifold can actually outflow a proper tubular.

And for the record, I had a ported Evo III manifold and it sucked.

 

[Asimmons90GSX]

The DNP is an amazing manifold that is tough as nails and will probably never crack on you. Very heavy duty materials and it just looks badass!!

 

[turbosax2]

The DNP is an amazing manifold that is tough as nails and will probably never crack on you. Very heavy duty materials and it just looks badass!!

Even DNP quality can crack:

http://www.dsmtuners.com/forums/art...ly-protect-install-your-tubular-manifold.html

 

[CTP]

The DNP is an amazing manifold that is tough as nails and will probably never crack on you. Very heavy duty materials and it just looks badass!!

Are you joking? It's 18 gauge steel pulse welded in some third world country by five year old slave laborers. Please don't make comments like that unless you have some fabrication and manifold building experience.

 

[D's GS-T]

Sounds Like I'll be going with the forced performance racing manifold. Sounds like the DNP is Junk . I don't want to have the welds cracking up, and having the heat melt fans

 

[Brianawd]

DNP manifolds are SSautochrome/XSpower EBay junk. The only difference is that they charge 4x as much for them so everyone thinks they're great. Proper tubular manifolds will not crack, however, 18 gauge steal garbage like the DNP's will most definitely crack in a short period of time. Not to mention the fact that the runners are significantly smaller than the head ports.

If you aren't able to buy a proper tubular, don't buy one at all. It'll only result in headaches.

So if they are junk then why are people making 700+awhp. My be you should so some more reading before posting info like you do.

Modern Automotive Performance Gallery

 

[gsx951]

That's pretty lame. Some guy's DSMlink estimated HP logs and a bunch of people saying, "Yea, it felt great." Sucks that no one has done a back to back dyno test. I'd like to see a test of stock 2g vs. ported 2g vs. FP crap vs. a real SLS tubular. That would put that whole "zgzgz it's ported!!!1111!" thing to rest and it'd also end the misconception everyone seems to have been dupped into having that a cast manifold can actually outflow a proper tubular.

And for the record, I had a ported Evo III manifold and it sucked.

Who are you and where do you get off calling FP's manifold crap?
Do you have any data ?

Oh, by the way, the FP manifold is a cast version of Ron Shearer's work.

 

[blcknspo0ln]

This thread is borderline sketchy. Keep the preempt attacks to a minimum, please. True, my DNP manifold cracked, and yes, the welds/steel gauge was less than what I had hoped for, and yes, I did switch to an FP cast manifold. All said and done, I did back to back dsmlnk logs comparing the dnp and my fp cast manifold and the difference was very neglible, at least with my logs they weren't any different.

While I do support CTP's aggression in demanding proof instead of hearsay, it's very likely that his claims are just as biased. Until someone does back to back dyno runs, this subject will never be laid to rest. After reading FP's claims on the manifold (and having one myself), I can say that for the price & durability of this manifold, it is one hell of a buy. Keeping airflow and spoolup characteristics versus a DNP tubular, emitting less heat, costing less, and NOT CRACKING are 5 great reasons why I'd choose an FP over a DNP.

CTP, as you say, a ported 2g manifold may or may not compare to a properly designed tubular manifold. You're right. Theoretically a tubular should be better than a cast mani in every way, shape, and form; but then again, that's only in theory (read: DNP's manifold quality). Guys have gone 10s on a stock 2g manifold, o2 housing, and turbo, but that doesn't mean it's efficient or xxx manifold or xxx o2 housing or xxx turbo isn't better suited for it.

 

[Brianawd]

Ok if the car is going to be used as a DD, I would go with a FP manifold. Even if its not a DD the FP manifold is a great chose. Hell it should be Rod Shearer is the one that designed it.
Now as for tubular manifold cranking. They all do over time. I have seen DNP's crack along with one's made by full race,Shearer,and some custom ones. Even cast manifold crack. You just have to pick what you want and what will work best for you.

 

[D's GS-T]

Thanks for the info guys

 

[D's GS-T]

Has anyone heard anything about the UPC stainless steel polished
header

 

[CTP]

CTP, as you say, a ported 2g manifold may or may not compare to a properly designed tubular manifold. You're right. Theoretically a tubular should be better than a cast mani in every way, shape, and form; but then again, that's only in theory (read: DNP's manifold quality). Guys have gone 10s on a stock 2g manifold, o2 housing, and turbo, but that doesn't mean it's efficient or xxx manifold or xxx o2 housing or xxx turbo isn't better suited for it.

Exactly my point. I'm glad someone understood what I was getting at. This mentality of "oh well this guy went 4's on this manifold, therefore it must be ####in awsome" is ridiculous. People need to think outside of what "everyone else" has done. Just because it works doesn't mean something else wouldn't work better.


Also, to the other guy. I don't need any data. The burden of proof is on FP to prove that their manifold is better than what already exists.

And to the other guy that thinks DNP's are anything remotely close to a legit manifold, give me a break dude. I could go 9's on a T25, does that make it a good 9 second turbo? Not. Those manifolds are junk. I don't care how fast people have gone on them.

 

[Brianawd]

And to the other guy that thinks DNP's are anything remotely close to a legit manifold, give me a break dude. I could go 9's on a T25, does that make it a good 9 second turbo? Not. Those manifolds are junk. I don't care how fast people have gone on them.

No one here ever said that the DNP is in the same class as a Shearer or full race. What was said is that all tubular manifold crack. But for you to make a blanket statement saying they are junk is bull. There are lots of people out there that have never had a problem with them cracking. But hey you know from experience right because you can go 9s on a t25.

P.S The FP manifold was designed by Ron shearer