Alright I hate to bring up old threads but i am just curious if there is any more info out there about obx headers? I know that ive read that they will fit with slight modification but what mods are we talking about? I ve read that they will need to be shaved a little to accomidate starter but what else because that is not a big deal.

 

Get the Cattman headers, the fit directly onto our cars.

 

dont do it

 

Why do you say dont do it? from what ive read you just have to shave where it touches starter, weld in egr tube and exted ypipe a little. Is there something else i am missing

 

Along with the CELs nobody seems to be able to fix.

jay, just gut your stock cats and call it a day.

 

Ive read that there are a couple members out there that claim to have these installed no problems and no cel. but what do I know

 

Well, the Cattman headers... sure, there were a few... but there were even more with P1273/74 and P1283/84 codes... nobody knows how to fix it either, last I heard.

That was an issue I was having with my headers.

 

I have obx headers not a single code over 3 months 1800 miles. but Im an 03 sooooooo yea.

 

Wait till racinglinepeformance.com come out w pre-cat which is way better than stock.
N with racinglinepeformance we can get hp n a no cel like cattman header but remeber they still wrking on it so it may take time.

 

how much hp do you guys think will be attainable with the racingline precat?

 

dude i had obx cheapo ebay headers before. i think i was the first on here. its nothing but trouble. EVERYTHING you said about them your right. You do have to do all that. and the construction is cheap. My manifolds from the headers cracked and i dont even know how. Maybe they improved on their design now. But i remember the y pipe they give you is **** also. Car sounds pretty loud had to get a borla resonator welded on after the y pipe jsut to tone it down. i have had cattman headers for YEARS not and now a single problem yet. Knock on wood.

btw i have no cel for cat lol. Dont know how? maybe my technosquare reflash? doubt it though.

 

Get the Altima SE-R headers. Not a direct bolt on. Need to weld over the EGR from your stock Y Pipe and also shave your starter a bit for a good fit.

 

i got headers and y-pipe through x3 racing or some****. probably cheapo... ok for sure cheapo and they were a perfect fit. wierd...

 

Get the Altima SE-R headers. Not a direct bolt on. Need to weld over the EGR from your stock Y Pipe and also shave your starter a bit for a good fit.
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Thats what ive read and i have already found a shop that would tackle it. To me that does not sound like a whole lot of fabrication work. From what I understand (and anyone correct me if im wrong) is that the cheap no name brand ebay headers are junk. The obx headers are workable with the above stated altercations and the cattman headers are king of the hill. The obx headers are tempting

 

.

 

i put the headers on my car from the nissan altima 02-06 and i had to shave the part that touch the starter and extend the headers.. if i were u i wait until the made headers for our maxima

 

what racingline is coming out with is hi-flow cats that will replace the existing stock catalytic converters. it will be more durable and more flowing than the oems, and hopefully this will be proven to not trip the cel and we will all be able to enjoy the benefits of headers without the worry of a cel.


http://www.nissanclub.com/forums/200...ect-today.html

post 12

 

So, high flow pre cats and main cat or . ..

 

haha my apologies for not making it clearer. it will be for the cats on the exhaust manifolds.

 

Is that inside information, or is there a link? Is it for the Alti & Maxi?

 

should be interchangeable between the alti and max's. i'll ask joe at racingline about it. and the link is basically the thread that racingline started keeping us informed about the progress of it.

 

Do you have that link, and can you post, I'm being lazy.

 

Interesting, I think that may be the fix for the CEL. I know that Oolatec and I have been going over this ever since we got the Cattman headers. Replaced main 02 sensors, added spacer all kinds of stuff EXCEPT a reflash.

That may be next on my list but won't happen until I can find a backup ECU, probably at the end of the summer. Other than that, I've had zero issues with the Cattman headers or Y-pipe. The Nissan tech that works on my car is the dealership's certified GT-R tech, he always comments on the quality of the Cattman products.

It's your car though, it would save you money to go ebay or probably even OBX, but it may not save you headaches.

If Racingline jumps into it, that would be good too. Checking out that thread.

 

i bought the obx headers but it didnt came with a egr for the back of the headers. I do not know what to do right now. Can some body give me a advice. please

 

http://forums.maxima.org/6th-generat...converter.html

Last post from Racingline was back in February, and they said to wait a month or two. Hopefully these things will be ready soon

 

Okay reading that thread, a point of clarification, the Racingline will not be a true header but it could be a very good alternative for some folks.

 

Muffler shop. They need to take PRECISE measurements to weld in an ERG valve.

 

Do you guys with headers out there think that these precats by racinglline are really going to add much power? Ive entertained the idea of just gutting them and treating it like a header install. This would be the cheap alternative to failed precats. You'd theoretically just have to trick the comp. via o2 simulators or whichever route you choose. Have you guys tried using o2 spacers for the secondary sensors and do they work? Also, how much more hp could a high performance precat give you compared to not having one at all? I would think that gutting them both would add power but not as much as headers because of the individual runners. What u guys think?

 

So i need to take out the old headers so that they can measure it. Do i need the egr to run proper or can i cancell it out.

 

yup, not a true header system, but should hopefully yield close results

 

So i need to take out the old headers so that they can measure it. Do i need the egr to run proper or can i cancell it out.

 

I'm really interested in what Racingline has to offer. I'm going to get that one. I have the Cattman headers now, but they're not that strong. My rear header has cracked twice. A circular crack around the 3 to 1 collector. It must have been due to the car bottoming out when I was slowly exiting a parking lot; I'm very careful with these things. Still, the muffler guys that replaced it said it was made out of galvanized steel and not as durable and strong as stock. I've had it TIG welded and the weld broke again; I'll try to get it re-welded under the shop's warranty. The precat's that Taz showed a while back, black in color, look meatier and may actually relieve these CEL codes that I've been staring at since June of last year when I got the headers installed.