Finally got to formatting these photos. Kyle and Chuck down in AZ had one of these OBX headers laying around so I figured Id give some insight to the quality of construction on thees puppies.

First off I was Impressed, all stainless steel construction, thick flanges (3/8" I think), and super dope perforated SS gaskets. It looks to be a straight rip off of the HS Header, although I dont know what gen. All the welds looked great.

There were two things I didnt like about the header, 1) A missed spot where the ERG/EGR tube mounts to the header. This will definatley leak and could be fixed at any welding shop. I think this was a fluke on OBX's part. 2) Where that same bung enters the tubing. It goes in pretty deep and will restrict the flow coming out of that particular cylinder, a shorter bung, or it being welded on the surface of the tube could fix that short coming.

After seeing these, I would give my recomendation on purchasing the header over the HS header, namely due to the price, the SS construction and the super dope gaskets that come with the header.

As for performance gains, I havent seen any dyno charts specifically for this header, but considering its a HS ripoff, it probably comes close.

Anyway, here are the photos. Enjoy.


http://www.g20.net/~pat/Misc/OBX/OBX001.jpg
http://www.g20.net/~pat/Misc/OBX/OBX002.jpg
http://www.g20.net/~pat/Misc/OBX/OBX003.jpg
http://www.g20.net/~pat/Misc/OBX/OBX004.jpg
http://www.g20.net/~pat/Misc/OBX/OBX005.jpg
http://www.g20.net/~pat/Misc/OBX/OBX006.jpg
http://www.g20.net/~pat/Misc/OBX/OBX007.jpg
http://www.g20.net/~pat/Misc/OBX/OBX008.jpg
http://www.g20.net/~pat/Misc/OBX/OBX009.jpg

Good stuff, im going to get a pair, way cheaper that Hotshots!!

Interesting....:nerd:
Are the primaries and secondaries roughly the same dimensions as the HS Gen5?:surprised

Originally posted by MR. RYTE
Are the primaries and secondaries roughly the same dimensions as the HS Gen5?:surprised

They look to be...but I didnt take any measurements just photos.

erm, anyone wanna tell me the price (new to site nad aint found this anywhere yet). If its good may get a group buy for the Primera owners Club in the UK

ignore my lack of intelligence, i have foudn the site and price

This is a good thing considering that both the HS and STILLEN headers for the SR20DE engines are overpriceD. I say this comparing a header purchase for an SE-R to a 4 cylinder HONDA engine header. Their headers normally go for $279.00 tops unless your looking at purchasing an import like MUGEN or something. Hopefully this will drive down the cost of both headers substantially. I get tired of hearing the excuses from the manufactures that imply that not enough of the SE-R headers are sold to justify lowering the cost. Well now, OBX has made it simple. It's just a header like any other good header. I'd say give it six months and you'll see STILLEN drop their price and HS to follow shortly after. I may wait or just get the OBX. THANX! for the pics.:cheeky:

Thank God. Poor people everywhere are rejoicing!

Damn those look pretty nice! :cool:

Why doesn't OBX have this header listed on their website?

Originally posted by LAST_P11
Damn those look pretty nice! :cool:

Why doesn't OBX have this header listed on their website?

They do. On page two.

Prod.# H9598
95-99 Nissan Sentra/200SX 2.0L SE-R Header
Price $189.95

This will fit the '94-'96 P10 and 99+ P11

http://www.obxracingsports.com/performance.cfm?catID=3&subcatID=22

I'm assuming you mean here right.

so they won't fit a 91' p10???

This is for lowport G's only?? I guess I don't understand. Isn't the only difference between the highport & lowport engines the placement of the injectors and tb/intake plenum? I thought the header configuration was identical. Someone please help me out... I want these, but I've got a '93. Thanks.

-N

Also, is it just me, or have the prices changed to even up with Hotshot/Stillen prices?! I don't see anything on that page for under $300!

Originally posted by LAST_P11
http://www.obxracingsports.com/performance.cfm?catID=3&subcatID=22

I'm assuming you mean here right. NOPE!

Here, third one from the bottom:
http://www.ssautochrome.com/_estore/parser.php/level.itml/icOid/1063?icObjectId=1063&icStartIndex=20&icQuery=

It's only $189.50, not $300


Originally posted by j_nutz
so they won't fit a 91' p10???
High ports have the AIV. This header does not have the AIV bung on it, only the EGR bung and O2 bung. It will not work unless you've removed your AIV.

Originally posted by NismoPC
NOPE!

Here, third one from the bottom:
http://www.ssautochrome.com/_estore/parser.php/level.itml/icOid/1063?icObjectId=1063&icStartIndex=2 0&icQuery=

It's only $189.50, not $300


High ports have the AIV. This header does not have the AIV bung on it, only the EGR bung and O2 bung. It will not work unless you've removed your AIV.


Hmm so i have a 93.5 which is a high port but without the AIV so it should be good?

91 through 93 removal of aiv so the obx header will work.

http://www.se-r-list.org/new-archives/Week-of-Mon-20020304/003618.html

Originally posted by paradyme
This is a good thing considering that both the HS and STILLEN headers for the SR20DE engines are overpriceD. I say this comparing a header purchase for an SE-R to a 4 cylinder HONDA engine header. Their headers normally go for $279.00 tops unless your looking at purchasing an import like MUGEN or something. Hopefully this will drive down the cost of both headers substantially. I get tired of hearing the excuses from the manufactures that imply that not enough of the SE-R headers are sold to justify lowering the cost. Well now, OBX has made it simple. It's just a header like any other good header. I'd say give it six months and you'll see STILLEN drop their price and HS to follow shortly after. I may wait or just get the OBX. THANX! for the pics.:cheeky:

Dont count on it this header is nuttin new....its been floating around the Nissan FOrums since last year....Along with a new Focuz header also....:rolleyes:

Yeah true but no real confirmation to how the OBX was designed. These pics have changed this. I was trying to get info about 4 months ago and again no one could confirm the design. I even E-mailed OBX and was told that the header was one piece with no flex pipe? So now it's official. OBX makes a descent header. As I mentioned before both HS and STILLEN falsely maintain reasons as to why the SR20DE headers remain to be so expensive, And like everyone else I like quality and as most of us know here at G20.net there are numerous NISSAN enthusiast driven websites that support the the SR20DE engine and its many NISSAN model cars this engine is found in and with this said both HS and STILLEN has it's share of SR20DE engine owners who have purchased many different aftermarket parts for these cars. So why don't headers go on sale from the manufactures? along with other parts like intakes and so on. I have a STILLEN 4 into 1 that has a small and currently harmless crack in it. I also previously replaced the flex pipe that had prematurely ripped open. These are common header whoes that can be fixed but at $189.00 for the OBX I'm willing to give them a try. I know, I know, some may say join a group buy. Personally I feel the manufacures can give everyone a break including it's distributors and place headers on sale from time to time.:cheeky:

Good info Yahnozha

The only way these headers will get cheaper is if people start buying headers that are less expencive. They have no reason to lower the price if you guys keep spending extra to get them. I'm very happy with my Pacesetter header for $150. I have had problems but they were expected problems. I changed the flex pipe to a braided flex pipe for $40, and changed the paper gasket for a 300zx gasket for $10. I don't see any other problems occuring, but there is always the chance of cracking but any header can do that. So I spent alot less than HS or Stillen even with these modifications.

Yep, It is becuase we all experience problems from time to time with any SR20DE header that the OBX header will be money well spent. At this price I could afford to replace my STILLEN 4 into 1 with the OBX and possibly have the STILLEN re-coated or repaired, store it as an alternate. People this just means that our cars are finally meeting the mainstream demand hopefully. Think of all of the aftermarket options we have lost out to over the years, particularly with the P10 model G20's. I'm glad the SR20DE engine is being recognized without holding the enthusiast hostage to high prices. There are tons of options for our cars mostly sold oversees then we get raped to have them imported and that is really a shame. Hopefully this is the beginning of manufactures and distrubutors alike trying harder to normally include the SR20DE engine along with other favored aftermarket modifications that we as G20 owners so often desire and without having to concoct some alternative effort ie, neverending group buys, part modifications, and oh! they just don't make those for G20's.:cheeky:

The OBX headers seem like a great, and now there's a GB going on for $150 shipped... Can't go wrong with that!! :)
Wassup with the header pipes being inches smaller though? ... that wouldn't be too friendly on a VE motor... :cheeky:

As for the bungs, I believe that they come with caps.. depending on which generations you get... and if your vehicle doesn't need the AIV one for example... you just leave it capped rigth?... :)

Correct.:cheeky:

Originally posted by Fraychild
The OBX headers seem like a great, and now there's a GB going on for $150 shipped... Can't go wrong with that!! :)
Wassup with the header pipes being inches smaller though? ... that wouldn't be too friendly on a VE motor... :cheeky:

As for the bungs, I believe that they come with caps.. depending on which generations you get... and if your vehicle doesn't need the AIV one for example... you just leave it capped rigth?... :)

I'D LIKE TO GET IN ON THE GROUP BUY...!
:)

didn't the fix the egr problem now? the new ones are generation 2 i believe,,,not sure though

You can say that. I know the EGR bung problem no longer exist. It no longer protrudes into the 4th primary as it did previously. :cheeky:

If you guys want to see the OBX Header more up close and personal, check out my website. I posted several well taken pictures of Paradyme's OBX header.

Also note that his header has an O2 bung, a AIV bung, and a EGR bung. It also came with two (2) bung plugs for whatever you desire to do with your emissions crap. His header is fully compatible with all SR20 applications.

http://nismopc.tripod.com/OBXHeader.htm

The only way the HS and Stillen headers will get cheaper is if there is some sudden boom in demand for SR20 headers and Stillen and HS (which are very small companies) start manufacturing headers at a much lower cost than they currently are. The reason they are so expensive is that they are in relatively low demand, say compared to hondas. DC Sports can afford to make their headers and other products cheap because they are in high demand with tens of thousands of honda owners, not quite the case with SR20's. Now I know Hotshot has a quite a few other applications, but it still doesn't compare to the scope of demand for honda parts. On another note the OBX header is so cheap because, like Pacesetter, OBX has products for hundreds of applications and has the manufacturing power to produce products at low cost, considering they don't do their own research and development, they just rip off designs from people like hotshot and reproduce them for a fraction of the cost. This OBX header is most likely identical in design to the HS Gen3 and the Pacesetter header, which means it won't make as much power as the HS gen5 header. So what I'm saying basically is this: this header is essentially a fancy looking pacesetter. And for the record this header will fit any SR20DE from 1991 to 2002, with minor modification to the later model years.

Originally posted by Cliffgump
The only way the HS and Stillen headers will get cheaper is if there is some sudden boom in demand for SR20 headers and Stillen and HS (which are very small companies) start manufacturing headers at a much lower cost than they currently are. The reason they are so expensive is that they are in relatively low demand, say compared to hondas. DC Sports can afford to make their headers and other products cheap because they are in high demand with tens of thousands of honda owners, not quite the case with SR20's. Now I know Hotshot has a quite a few other applications, but it still doesn't compare to the scope of demand for honda parts. On another note the OBX header is so cheap because, like Pacesetter, OBX has products for hundreds of applications and has the manufacturing power to produce products at low cost, considering they don't do their own research and development, they just rip off designs from people like hotshot and reproduce them for a fraction of the cost. This OBX header is most likely identical in design to the HS Gen3 and the Pacesetter header, which means it won't make as much power as the HS gen5 header. So what I'm saying basically is this: this header is essentially a fancy looking pacesetter. And for the record this header will fit any SR20DE from 1991 to 2002, with minor modification to the later model years. Very well said. Sad to say, me thinks that this is as good as it gets for the SR20DE crowd. Heck, if you think that's messed up, try getting a SR20VE header(I believe that there are only one or two available.....:-\ )

these have been around forever. If you want it on a highport just take the AIV off, I gaurantee it'll run better anyway. After a few years the reed valve warps in the AIV and causes it to backflow exhaust in to the intake and through the MAF. Reason number 1 Nissan quit putting them on. Also as far as the headers design, the primarys are larger then the secondarys, they step down suddenly and it will cause a power loss. You should port match the header to get thr flanges the same. http://www.sr20forum.com/showthread.php?t=58678