I'm trying to think of what the next exhaust mods will be on my car. I currently have just an HKS rear section. I'm either going to do a header or a Warpspeed y-pipe, and then eventually a B-pipe. I just wanted to know in terms of HP gains (and fitment issues if any) what header you org guys saw the best gains with.

 

supposedly theres some kind of fitment issue with the Hotshots. Everything Ive heard tells me to get the Cattman headers. Ive talked to Mr. Catts and he's a very nice guy and very smart about the Max. His exhaust system is considered the best out there, from the intake to the muffler (course the intake is PR and the muffler is Mossy, but hey). After all the research ive done, Ive decided that the Cattman headers are the ones im getting this summer.


I wouldnt mind seein some dynos too

 

wow, no dynos?

 

Apparently you haven't done the right kind of research.

 

okay..."pretty much"

 

Thanks for your input, just trying to get the best header available for my car.I don't want to fart around with junk.

 

agreed...a Cattman exhaust is NOT made by Cattman....and a Mossy exhaust is NOT made by Mossy

 

ok.. any info? kinda in the same market here.. not sure to get headers or a y-pipe instead.. need some good write-ups/reviews of the y-pipe and both headers.. wanna know about losing low-end with the headers and wat not.. i know i read some reviews before.. but cant find them.. can anyone help out here? thanks

 

definitely headers if u have a 2k2 up....the restrictive precats are in the manifolds unlike the vq30's where they are in the downpipes...getting a ypipe on a vq35 will NOT remove any precats....the result is NOT an explosive gain....compared to 20-25whp with headers....

heard low end tq is retained even with the headers installed....i saw Fezzik's dyno and the tq is still there....this is all assuming cattman headers btw....since they are designed a little bit better than hotshots (equal length headers)....

 

I had a Cattman y-pipe (just took it off tonight) on my 02 and it didn't feel like I gained much from it... it sounded good... just like my intake, but I never felt the gains (probably cuz it was only like 6-8 whp anyways) that much. I drove around with the stock y-pipe on and it only sounded slower, since it was a little quieter, then again, the y might've been good up top and I didn't get a chance to hit the freeway tonight to see how stock felt again.

Whatever, who am I kidding right? Stock sucks...

 

well.. losing a couple horses isnt so bad compared to the $200 difference.. do you have that post by fezzik? that would definitely help.. jus still unsure about the y-pipe only, or headers.

haha stock sucks.. yeah man.. i have the frankencar catback.. and it sounds nice when you get on it.. maybe its my intake? haha i dono.. but it sounds nice.. maybe when its idle.. i miss how my old maxima sounded with the ypipe and catback.. not only that.. i want my car to sound like that M3 i saw today..

 

I got HS headers on my 3.sloooow and there is a noticable diff over just Cattman Ypipe. Don't have any dyno #s as I can't disclose what my 3.slow makes, might make some people mad :P HS headers fit right on with no problems, you need to know how to install them- REAL mechanic will know his Maximas :P 02 sensor on the front manifold hits the AC compressor, so it needs to be relocated or the compressor needs to be removed.

 

Hej Mike how long does it take to install the hotshot headers and are there any deals on them??

 

it took me bout 2 hours with a oil change and removing my AC to make it all work. I got my headers from JWT for 529 shipped few months ago.

 

Robert masz GG lub AIM ? PM me.

 

no one else has any info on this topic?

 

Well, it seems that headers are a pain/expensive to install for most average enthusiasts and they are relatively costly, so with that being said, I really doubt that anyone is going to find it worth their while to dyno with a set of Hotshot headers on the car, pull em off, and then re-install a set of Cattman headers and jump on the dyno again. Not to mention, dyno costs are high too. Its just not a cost effective comparison, but it would be useful for us all.

There are dynos of Fezzik's 2002 with Cattman headers around here somewhere, so I think right now what ya need is another similar 2002 (similar mods, 6 speed, etc) with Hotshot headers to dyno in order to make some sort of comparison. Even then, different cars will give slightly different gains, depending on how they've been tuned, so its a very rudimentary comparison at best.

 

If you are saying to maximaness that the PR intake and the cattman arent "one in the same" you would be the wrong one there. The design is simply to be exactly like that of the place racing.As far as the muffler and what not. i wouldnt have any idea. just thought id throw out my sense and research.

 

its like what puppetmaster said, no one is going to buy two sets of headers, install and reinstall, and then dyno both times. Easiest comparing to car dynos with similar mods as the SAE correction factor and 4th gear dyno in 6spds makes it a close comparison.

and another thing, 02-04 vq35de maximas are not the only ones with precats in the manifolds. The 99-01 cali specs have the stupid precat in the manifolds also. And 02-03's with cattman y-pipes do make some significant power as i've seen from local dynos and not the usual "butt dyno" or other stuff around the org.

if you want a 2k2 6spd with cattman y-pipe vs. 2k2 6spd with hotshot headers dyno from socal on the same day and dyno, just email me for the file.

 

I know you all hate Stillen but their headers work fine in my 2003. They sound great, IMO there is more power, and I fixed the SES light with the help of studman.

 

No dyno plots = no care ...

 

heard stillen ypipes were awesome...but their headers

 

I agree with Puppetmaster in regards to cost, so noone will probably ever have a true back to back comparison test, but it is nice to get some opinions of the people who have the most experience with the mods and installs. Because of the expense involved, I'm trying to be extra careful with my selection. I tried e-mailing Warpspeed Performance to ask them if they had any plans on producing a header. I never got a response, I figured if they did have plans to do it, I'd wait. I'll probably go with HotShots and a b-pipe. I don't feel like shelling out $800 for headers, and then another God only knows what else for an install. I wish I lived in Cali, because the import scene is so huge, Cali guys don't have to pay an arm and a leg for the installs. The lowest price I could find for someone to do my drop with new struts was $400 labor (not including parts.) Luckily, my buddy did the job along with all new rotors + pads for $200 to install everything. I'm glad that other people on the org are all interested in the same info on the headers for our cars.

 

Excellent design.

 

would the numbers of a car with cattman headers and a car with hotshot headers be THAT much different with the mods they have? besides the way that the car is tuned, could we can kind of guesstimate how much hp/tq u can really get from these 2 sets of headers?

 

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