Just installed my headers
Originally Posted by MrEous
Quoted for truth...
The improvement is around 1-2whp at the most and that is stretching it.
I dyno'd before and after install of SR Headers/ypipe...I know better than anyone else exactly what the numbers say, it's my car.

Is it worth the extra $50 you pay 'just' for a ypipe? NO, not unless you are trying to extract every single hp out of the VQ.
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The improvement is around 1-2whp at the most and that is stretching it.
I dyno'd before and after install of SR Headers/ypipe...I know better than anyone else exactly what the numbers say, it's my car.

Is it worth the extra $50 you pay 'just' for a ypipe? NO, not unless you are trying to extract every single hp out of the VQ.
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4 for my second ....

I see you're comparing to Cattman ... but why?
cause cattman is better, there really is no research to back up stone racing anything except for the fact that its all junk. many people, not only maxima owners arent the only ones complaining of their poor quality. and to whoever said obx is total junk it really isnt since all their pulleys and most of their other products are just retaged with the OBX name AEM actually manufactures their pulleys
the stone racing y pipe is the same as the warpspeed y pipe
Originally Posted by naplesmaxima
i think the point here is that there is an improvement
Originally Posted by MrEous
No offense but I was the 2nd prototype for the Stone Racing Headers. You can check around and get my before/after dyno runs.
Now you know.
kthx
Now you know.
kthx
I agree that is part of the point. But since the improvement is most likely only from the y-pipe, then what is the point of adding the manifolds? Please explain that to me, and then I might be satisfied. Not trying to pick a fight, just trying to learn something here.
and then i later added the headers and there was also a gain there
i added the headers because i knew they would do something good for the car and they are better than stock
happy now
Originally Posted by naplesmaxima
1st i added the y pipe with there was a good gain there
and then i later added the headers and there was also a gain there
i added the headers because i knew they would do something good for the car and they are better than stock
happy now
and then i later added the headers and there was also a gain there
i added the headers because i knew they would do something good for the car and they are better than stock
happy now
Originally Posted by naplesmaxima
most likely you dont have the knowledge oh how to install them thats why you arent going to get them
It seems that my attempt at a peaceful departure from this thread wasn't good enough for you. As for the extent of my knowledge, I guess you'll never know. Thanks for the cheap shot and enjoy your new headers.
Originally Posted by NmexMAX
Truth hurts sometimes
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Originally Posted by Puppetmaster
Well, they have been proven on a dyno to give nothing on a 5th or 5.5 Gen... ya might get a little from the y-pipe on a 4th Gen....
Originally Posted by Puppetmaster
Actually, I'm not getting them because to me, they are useless and provide no gains.
It seems that my attempt at a peaceful departure from this thread wasn't good enough for you. As for the extent of my knowledge, I guess you'll never know. Thanks for the cheap shot and enjoy your new headers.
It seems that my attempt at a peaceful departure from this thread wasn't good enough for you. As for the extent of my knowledge, I guess you'll never know. Thanks for the cheap shot and enjoy your new headers.
well i got headers and i cant say much about hp, best 1.4 mile time is with a ypipe 14.1 best header run 14.2, i love the headers but hey they dont do much if you asked me, i recently dynoed at 182 hp/194 tq ?
Ceasar, this might explain the lack of power gained from the older cattman headers you and i have
i will be interested to see what kind of gains the new Cattman headers will have over the old design
the company that made the previous headers for cattman didnt have a VQ head to make a template from, so the header flange that mated to the block wasn't done right. from my understanding, part of the flange blocked the airflow from the exhaust ports on the head because it wasnt centered correctly, so the flow was hitting the flange and was not a free flowing setup. Ours however dont have that problem. We have a spare head in the shop that we use to mock things up to make sure they are on point
i will be interested to see what kind of gains the new Cattman headers will have over the old design
Originally Posted by MrEous
I dyno'd before and after install of SR Headers/ypipe...
http://forums.maxima.org/showthread....hlight=headers
Quote:
the company that made the previous headers for cattman didnt have a VQ head to make a template from, so the header flange that mated to the block wasn't done right. from my understanding, part of the flange blocked the airflow from the exhaust ports on the head because it wasnt centered correctly, so the flow was hitting the flange and was not a free flowing setup. Ours however dont have that problem. We have a spare head in the shop that we use to mock things up to make sure they are on point .
the company that made the previous headers for cattman didnt have a VQ head to make a template from, so the header flange that mated to the block wasn't done right. from my understanding, part of the flange blocked the airflow from the exhaust ports on the head because it wasnt centered correctly, so the flow was hitting the flange and was not a free flowing setup. Ours however dont have that problem. We have a spare head in the shop that we use to mock things up to make sure they are on point .
Sounds like something a competitor would say. I call BS.
When I installed my Cattman gen 1s, I took a good look at the fitment with the ports. I compared the gasket against both the header flange and against the head exhaust ports, and found no such discrepancy between head and flange.
The real issue is that the VQ30 in NA form doesn't really need the extra flow capacity that the headers provide. The oem exhaust manifolds and an aftermarket y-pipe flow well enough that the headers don't really help much. On the other hand, I and another supercharged Maxima owner saw more than 30 hp gain after installing the Cattman gen 1 headers.
i also call BS on that statment theres no way that they werent test fitted or anything else. Brian wouldnt sell somthing that doesnt fit right, CAttman is and most likly will be one if not the highest quality aftermarket exhaust makers for the maxima crowd. Take a look at all of his exhaust setups, have you ever seen any cattman exhaust part that hasent fit correctly? or had sloppy welds? or just poor quality in genral? i dont think so. nuff said...
Originally Posted by Puppetmaster
Btw, MrEous, I found the thread and it confirmed what you said and my earlier statement in post #57. Thanks 
http://forums.maxima.org/showthread....hlight=headers
http://forums.maxima.org/showthread....hlight=headers
Yes, we know its an improvement and don't doubt that, but you're still missing the point.
If most 4th Gens gain about 10-12 whp from a y-pipe alone, the marginal increase of 2-3 whp from adding those manifolds is not worth the extra install time to some, if not most people. That was my point all along (see post #57 and also #74 and #76 by Nmexmax) and I believe is what was argued in MrEou's thread as well.
Like said before, if you want to sqeeze out that last bit of hp using those shorty manifolds, that's totally fine, but to most others, the extra hassle is not worth it. That's all.
If most 4th Gens gain about 10-12 whp from a y-pipe alone, the marginal increase of 2-3 whp from adding those manifolds is not worth the extra install time to some, if not most people. That was my point all along (see post #57 and also #74 and #76 by Nmexmax) and I believe is what was argued in MrEou's thread as well.
Like said before, if you want to sqeeze out that last bit of hp using those shorty manifolds, that's totally fine, but to most others, the extra hassle is not worth it. That's all.




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