Are obx headers out of production for the 02-03 model maximas? I cant find any obx headers on ebay for them, just for the older gen maximas.

 

Go to Amazon then. You can get the from OBX.

 

I have 4th gen Headers on my 5.5 gen.

 

You can buy my leaky flex pipe ones

 

Lol Aackshun, im looking for something ready to bolt right in, w/ no modifications.

xpcgamer: I found them on Amazon last night so Ill just go ahead and order it from there. But I appreciate your help.

nmexmax: I thought that the 4th gen headers dont flow as well as the 5th gen obx headers? Now that I found them on amazon, id prefer to use the 5th gen headers. Regardless, thanks for your input and help.

 

You might want to do some more research on the OBX then, you may have to shave your crossmember.

 

 

Hilarious, John.

 

Pops made a dirty joke

 

I thought this was real like they stopped making them but guess not would throw a set on a 4th gen with a 3.5 swap but that's in the future if it ever happens....

 

AFAIK, Cattman is the only one who ever designed a set of headers for the Maxima that are truly bolt-on, without modification. Or maybe Hotshot, too... but I really don't know about that, and it's a moot point about Hotshot, unless you find a used set.

 

Cattman is the best header..I know its more money, but you get what you pay for.....you'll see....I would rather wait and save a few more bucks and get something right than get something not right....don't be in a hurry your car or the headers not going anywhere. Cattman headers are well worth it......You might want to read through some OBX headers posts and see what you have to do to install those things before you order.

 

fixed

 

He made a thread specifically asking about OBX, maybe that''s what he wants. If he's done research, he knows as much as we do.

While we're at it ... IMO, 1st gen Cattman > *

 

Yes, but...

...conflicts with:

 

I was on eBay two days ago looking for exhaust parts and there were about five listings for new OBX headers that I saw. They're definitely out there.

 

Ahhh, I need to learn how to read or stop assuming people actually know what they're talking about before they actually start a thread.


OP, be prepared to modify a few things an possibly run into fitment problems, or, live with it.

Or ultimately, get some Cattman Headers and risk less of a chance of the prior statement.

 

And ceramic coat your headers too.....

 

I doubt the would be discontinued, theres a few sellers on ebay selling the v1 style 95-01. Send them a message and specify your looking for 02-03 maxima headers.

Im sure they can tell you a back order date or something.

I have OBX and fitment wasnt great, but for the cost and the hp gains OBX v2 for 380 shipped will do the job.

 

Rochester: Dont take it the wrong way, but I know what is involved with installing the obx headers. When I said im looking for something read to bolt in, w/ no modifications I was refering to Aackshun when he mentioned he had a set of headers for sale that needed a little repair. I understand that the crossmember may need to be shaved about 1/4 inch, that the o2 bung needs to be relocated 90 degress, and that the o2 sensor needs to be extended a bit. Only reason why I have no problem with all of the work to do this is because the motor is coming out anyways and these are all problems that can be adressed much easier.

On a side note, does anyone have any exact measurements of where the crossmember needs to be shaved as well as the rear mount? Also, anyone have a link to the o2 simulator I need to buy in order to avoid the cel.

 

Well, it certainly reads like you did your homework and know what you're doing.

There's been a lot of talk lately about retrofitting plug non-foulers to extend the O2 sensor and spoof the signal coming from the secondaries. Pretty sure it's a less involved approach. It's certainly more cost effective. Go search through some of the recent pre-cat threads, like this one.

 

Well truthfully when the OBX V2's came out they were on par with Cattman performance wise and yea you had to do a little "convincing" to your car to make them fit lol. But the new V3 ones that I got stuck with have smaller tubing and I just don't feel like they are on par with Cattman's anymore. But for the price I still think they are a decent header.

 

I'll try to take a pic for you later this week on what needs to be be shaved if im under the car (which i plan to be). But its really no big deal. Its in the area right next to flex.

It can be done with a simple grinder, if you dont have one go to Harbor freight and buy a $15 one it will do for this one time job.

You need to shave about 3/8 to 1/4 of a inch off the corner of the member. I did 3/8 just to be safe since the engine moves during hard shifts and etc.

Other thing I suggest is adding a hanger after the flex section , since the obx doesnt have one and the next hanger isnt untill the 90 degree turn in the catback. Without a hanger your flex might fail alot faster then it should..
This can be done at any local exhaust shop for just a few bucks .

 

Thanks for all the help guys. I really appreciate it. I checked out that link Rochester and theres a lot of good info there. It may be the route I will take since its much more cost efficient. And Maxspeed96ct, that would be awesome if you could snap some pics. Send me a pm if you do get around to doing it.

 

...I have a complete write up on installing obx headers with pics if you use the search function you might find it

 

"If you use the search..." It's not a quiz. Just cross-reference, pimp.

http://forums.maxima.org/5th-generat...n-writeup.html

That is a good write-up, btw.

 

I have a thread aswell from when I installed, I had to trim the front motor mount bracket aswell. But so far I think im the only one that had to do this.

my link
http://forums.maxima.org/5th-generat...n-muffler.html

 

Once again, thanks everyone. You've been very helpful.

Quick question: Ive been hearing different things from people on the 95-01 headers vs the 02-03 obx headers. Some have been saying that the 02-03 headers flow better and sound better than the 95-01 headers while others are saying they are the same exact thing? Any input? Only reason why Im asking is because the 02-03 headers are on backorder for a couple weeks and the motor in my 5.5 gen needs to installe asap as it is my dd.

 

That's up to you, the 02-03 headers will sound better being equal length. And might make more power might not. Really depends what you do with the car. If your shooting for record breaking 1/4 mile times and dyno numbers or its just a car you enjoy to drive..

If you want to go as fast as possible and are trying to squeeze out every hp possible pay for the catmans

 

does anybody other than ghustle have the non equal lengh obx headers on a 5.5 gen?

 

When i put on my OBX's recently, I had to take out a power steering line do get the header up to the heads. Did anyone else run into this issue?

 

You weren't trying hard enough ...but seriously my rear header/y-pipe assembly went up onto the head without problem several different times because I had issues blowing out gaskets and everytime it went right in no problems.

 

You have to relocate/add O2 bungs to the hotshot headers. The front one lets your O2 hit the AC compressor.

Hotshots do have the longest primary runners and the most "gradual" loop though which in theory should transloate to more power, but the differences are so minor that any gains seen from it wont be consistent enough to matter vs cattman.

 

Damm, you sure they werent altima headers or something lol