5th Gen / 5.5 Gen Header Thread

[NmexMAX]

Originally Posted by OOmaxSE

How necessary is it to relocate to the collectors? It makes more sense to have it at the collectors to me, but I do know that the stock manifolds have o2 bungs at the primaries. It probably makes a difference in a performance aspect?

Performance would not be affected, only gas mileage. And even then, it wouldn't be a horrendous difference.

[machinehead131]

I am going to try cutting the bung down a little and surfacing it to get it flat. That way the bung will clear. Have that done tomorrow evening hopefully.

[babyboyws6]

Anyone buy OBX headers from ebay and have fitting issues??

I know most people say go with the cattman headers, but thats a good 800 dollars and the hotshots are a done deal. a few months from now ima be looking into some headers, gotta know what to look into and where to buy them.

[NmexMAX]

Originally Posted by babyboyws6

Anyone buy OBX headers from ebay and have fitting issues??

I know most people say go with the cattman headers, but thats a good 800 dollars and the hotshots are a done deal. a few months from now ima be looking into some headers, gotta know what to look into and where to buy them.

This might help. http://forums.maxima.org/showthread.php?t=512293

[deeroledice]

If i get Cattman or OBX headers for my 2001 SE, will i need to change any sensors?

[upstatemax]

Originally Posted by deeroledice

If i get Cattman or OBX headers for my 2001 SE, will i need to change any sensors?

No, either re-locate the secondary sensors or sim them.

[babyboyws6]

Originally Posted by NmexMAX

This might help. http://forums.maxima.org/showthread.php?t=512293

helped alot!!
ViperVadim - OBX headers - "if you can replace the flex section and the outlet piece with 2.5in piping more gains will be had in the midrange and top-end."

Same piping as the cattman headers = damage

[nicenotrice]

Ok please dont flame i read the whole thing. I cant find a 3.5 2002 exhaust system with headers Y-pipes and all and all on catman's website are for 3.0 or cat backs. I want the whole shabang! OBX's website is beat cant see which engine its for. i just want the whole exhaust!!!! My i35 is just dying to be unleashed i got the money just got no goodies

[slickrick]

call cattman...

[Puppetmaster]

Originally Posted by nicenotrice

Ok please dont flame i read the whole thing. I cant find a 3.5 2002 exhaust system with headers Y-pipes and all and all on catman's website are for 3.0 or cat backs. I want the whole shabang! OBX's website is beat cant see which engine its for. i just want the whole exhaust!!!! My i35 is just dying to be unleashed i got the money just got no goodies

Like SlickRick said, call Brian Catts; their website isn't updated. He has headers for your 2002 and the catbacks are the same for 00-03s, well with the exception of the Fed spec 2000s because of the O2 bung on the b-pipe.

[babyboyws6]

yeah def call them up, because they dont show their headers on their website but it dont mean they dont sell them... theres alot more you'll learn from them if you call

[OOmaxSE]

Here's what I did for my relocation on my 2000 cali spec. These are the Hotshot header. It's a little too late because they don't sell them anymore (lazy me).

[pbn85]

Sorry for asking a question that may have been covered:

Im buying hotshot headers for my 5.5...will I run into any fitment issues? I was reading about the EGRs and I recall some had fitment issues with the AC lines.

[steven88]

Originally Posted by SLVRMAXX

Sorry for asking a question that may have been covered:

Im buying hotshot headers for my 5.5...will I run into any fitment issues? I was reading about the EGRs and I recall some had fitment issues with the AC lines.

you will not have issues...that is with the 5th gen...but our 5.5 gens are direct bolt on...ac and egr will not get in your way

[pbn85]

positive? if so then thats a relief...at the price I cant pass these up for Cattman headers..even if their material is not as good and the gains will be somewhat less..thanks for the response

[steven88]

Originally Posted by SLVRMAXX

positive? if so then thats a relief...at the price I cant pass these up for Cattman headers..even if their material is not as good and the gains will be somewhat less..thanks for the response

yes i am positive...go check out all the header threads...and you will see what i mean...and if anything, HS will probably score higher than cattman....at least the new cattmans...

HS = Cattman Gen 1

HS > Cattman Gen 2

HS > Cattman Gen 3 <-----(not totally sure but it looks like it from the dynos)

[NmexMAX]

Ever try reading the first page of this sticky?

Originally Posted by Puppetmaster

And these 2 Hotshot threads:

http://forums.maxima.org/showthread.php?t=450524

http://forums.maxima.org/showthread.php?t=435912

[pbn85]

I read those but I also read somewhere that someone w/ HS had a bad installation exp. b/c the ypipe was extremely close to the oil pan and draining oil would result in it spilling over the ypipe. I know the general consensus is that HS fit fine but Im sure there are some that ran into problems.

Also, the HS headers Im getting have minimal rust..I could see small brown spots on the ypipe..not the headers so much (very minimal on the headers). Is this a cause for concern?

[OOmaxSE]

5.5 gens do not have EGR systems, so you don't have to worry. The AC line should not be an issue although I've read that someone had a problem with the clearance of their 5.5 gen. Either way, you won't have a major problem with HS installation, but you may have you slightly bend your o2 sensor at the MOST.

[steven88]

Originally Posted by SLVRMAXX

I read those but I also read somewhere that someone w/ HS had a bad installation exp. b/c the ypipe was extremely close to the oil pan and draining oil would result in it spilling over the ypipe. I know the general consensus is that HS fit fine but Im sure there are some that ran into problems.

you probably mistaken that for cattman gen 2's....they had a problem with oil spilling onto the ypipe

only the VERY early generation HS headers have problems...and they had fitment issues not ypipe too close to the oil pan issues....but i am sure those don't exist no more...

[pbn85]

cool thanks for the heads up!

[pbn85]

Im looking into buying some exhaust wrap for the ypipe and headers.

http://store.summitracing.com/partde...5&autoview=sku

Has anyone used this? More than reducing heat in the bay Im really looking to prevent possible rust on the parts. The description does not mention that it will prevent rust so Im asking if any of you have this and whether it prevented rust or not. Are there any downsides of using this?

I also saw this:

http://store.summitracing.com/partde...art=DEI-010301

[upstatemax]

does your set of HotShots have a ceramic coating?

If it does, I guess wrapping them is a big nono...

[pbn85]

i know they have some kind of coating..just dont know what

[DasYears]

looks like a dirty set of ceramic coated headers

[pbn85]

edit:

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