The h pipe sounds like @ss with inferior perfomance characteristics... If you actually like rasp with the added benefit of lower whp then please keep your h pipe. :-)

Here, lemme try to help ya out again:

http://www.streetdirectory.com/trave...ore_power.html

Although X-pipes are essential for race cars, adding this modification to a stock car can be a good idea for many reasons – increased power, fuel economy and less noise inside the vehicle. This type of aftermarket performance part is something you can either purchase or have custom-made for you by a good muffler shop. Installation is simple enough for the at-home pro, and the result will be well worth the effort.

 

So your saying HKS designed an inferior exhaust...wow youve come full circle

 

I think gothchick is saying to add in x-pipe to either exhaust

 

Which would mean the H pipe that comes with the almighty HKS is "inferior" as she put it

550 + X pipe is cheaper than 1500 + X pipe

If your gonna hack, why hack an expensive exhaust

Still cant believe Autobacs is selling HKS for $1500+ tax!!

 

I can google just as many cases where an x-pipe caused rasp, so you aren't proving anything. Not all H-pipes will cause rasp, as is evident with the x02, I have never experienced rasp with it, nor is there any on the clips I listened to on youtube. H-pipes tend to be raspy when they are undersized from what I gather. Adding an x-pipe will also make the exhaust note higher pitched, which I said I did not want I wanted deep/throaty. I'm not going to lose sleep over 2 rwhp and maybe .01 mpg gain. Yes the x-pipe has SLIGHTLY better performance potential, I never disputed that, just that I don't feel it's worth it.

But by all means, continue to hack up $1500 "perfect exhaust" to fix the out of the box rasp and quality defects under the guise "the x-pipe is better"

 

inferior to what? She's simply saying an h pipe is inferior to an x pipe. Nowhere does she say the HKS is perfect. Unless there is an HKS replica with an x-pipe sold somewhere, she's not saying the HKS is inferior to any other exhaust

 

She has a thread entitled:

"HKS, Improving on perfection." Which should read, "HKS, Improving on quality control issues and fixing rasp."

 

"What ever floats it for ya, but I think ya got that a 'lil backwards there chief~ now you're trying to rationalize why you should keep the inferior h-pipe on an inferior exhaust..."

The X02 is what she calls a copy of HKS, the HKS has the H pipe design which she says is "inferior" --- therefore HKS didnt make a perfect exhaust (its actually inferior in her eyes, ironically she bought it) in the first place which she touts as better than X02 for only reasons she knows,

By default if the X02 design is "inferior" so is the HKS....although I believe the piping is larger on the X02 which would translate to more potential flow...but thats another story...they both have H pipe design and she called it inferior....

She has yet to post any facts as to why the X02 is inferior to the HKS in any significant way.....just opinions to which she can have, but they dont mean much in terms of quality, longevity or effectivness

 

I like the HKS sound (when there are TTs attached to it..) Otherwise, PASS.

 

Ohhh, so you 'believe'? Got a link for that or any facts? No? Okay, just your opinion then? Thought so. Lol!

Really?? Then what's stopping you? If you think you can post up some links of this claim, then please feel free to do so. Otherwise what you're saying doesn't have any merit. I backed my statement up with facts, where's yours? Oh, don't have any you say? Thought so...

Haha, what a bunch of tards~ The h-pipe is cheaper to manufacture than an x-pipe... That's why exhaust companies use that option. But it is also raspier than an x-pipe and less effecient than an x-pipe, as I have shown in the above links. Yes, we call these little tid-bits 'facts'.

"Rasp", boys & girls occurs when the exhaust pulses get out of synch. How does that happen you ask? As the cylinders of each bank on a "V" style motor fire, they create a pulse in the system. The pulses will alternate back and forth from bank to bank as the motor runs. With multiple cylinders, such as a V-6, the six cylinders alternately fire creates lots of pulses in the system. The x-pipe smooths these pulses out. The h-pipe does not.

Instead of two separate banks of three cylinders doing their own work, the x-pipe uses the pulse created by a firing cylinder of one bank to create a vacuum in the other bank because of surface tension. When a cylinder of the other bank is ready to fire, instead of the piston having to force the exhaust gas out of the cylinder, the vacuum that was created by the other cylinder bank helps suck the exhaust gas out of the cylinder, hence the term "scavenging." The velocity of exhaust gases in one header tube causes a low-pressure area in an adjacent tube, literally sucking the exhaust out of that cylinder. The more cylinders, the greater the effect.

So what I was saying (for those of you with comprehension problems) is to get yourself a hacksaw, cut that h-pipe off, and replace it with an x-pipe.... Or not - up to you.

I personally have done this mod to my hks, and am impressed by it enough that I will do this mod to any car I own in the future with dual exhaust.

But then again, I actually like to improve on a design, and not simply buy some cheap imitation of that design to look like a poseur. Lol!

 

imho h-pipes are poor man's x-pipe, h-pipe for sound and x-pipe for power

 

You really are dense, I NEVER disputed the fact the x-pipes are more efficient. But we are talking 2-3 whp here, not 10+. Not all H-pipes are raspy, I have 0 rasp with it on my xo2 nor do several others as I've seen in videos. I know several people with mustangs who have properly sized H-pipes with 0 rasp and I know some mustang owners with X-pipes WITH RASP! So you can just stop with the fact, "H-Pipes cause rasp," because it's obviously not true.

I still find it laughable that for $1500 you have to hack off the h-pipe and put on an x-pipe to make it sound decent. For $1500 I would expect nothing short of the best, in this case an x-pipe. My $500 xO2 exhaust required 0 modifications to the exhaust to make it sound nice (read: no rasp), nor did I have a quality problems with the H-Pipe extending into the exhaust.

The fact of the matter is this. X-Pipes will scavenge exhaust gas better, which will free up a FEW ponies, it will not make or break the performance of your car. A properly sized and positioned H-Pipe will sound deeper than an X-Pipe, and will not perform that much worse. Rasp does NOT occur with all H-pipes but an X-Pipe will cause the exhaust to become higher pitched, it will also cause the exhaust to be quieter in most applications.

 

I don't think you understand how to use the word "inferior". Its a modifier and needs something to attach it to for it to work. H-pipe is inferior to X-pipe, that works. XO2 is inferior to the HKS also works(grammatically). Saying the HKS is inferior in general without something to compare it to makes no sense grammatically.

 

Just saw that part you added about my "googling" ability.

I still generally agree an x-pipe will perform better on most vehicles, but most times it's only a 2-3 whp difference. So here we go, 94 gt with h-pipe and x-pipe on the DYNO!

http://www.pittspeed.com/forums/arch...p?t-23106.html

Oh no....looks like the H-pipe performed BETTER than the x-pipe, must be the end of the world.


Here's one post about rasp with an x-pipe:

http://604z.com/php-bin/lofiversion/...php/t2452.html

I'm leaving work now, so I don't have time to post the others I found, but I believe other forum members can find them easy enough. If not I'll be happy to prove you wrong again.

BTW, did you do a before and after dyno on the x-pipe install or you just pulling it out of your ***?

 

Ummm, he threw up some random unconfirmed numbers... But I don't seem to see any dyno charts substantiating this claim... Can you please google that for us before we accept it as fact. Thx.


I think you missed this part from your own link... Lol!

"In short resonated X pipes = no rasp".

Hmmm, now why would your own link prove you wrong, I wonder??? At least I actually *read* my links before I post 'em...

 

Directly from HKS

32009-BN001 NISSAN 350Z 2003-2006 ; Full Dual Polished SUS304 Stainless Steel Piping w/Dual Titanium Tips (adjustable length), Includes H Pipe. 2006 Models requires slight modification or removal of EVAC shield. HP-Ti Tip 120mm Piping 60mm $1795.00

In case your wondering 60mm = 2 3/8ths or about 2.375 inches

The X02 uses 2.5" aka LARGER piping, thus improving the design....while they may look similar they are different

Love how you try to answer for me, do you just like talking to yourself?

So far we have gathered you spent at least double what an X02 + X pipe setup would cost for smaller pipes --- and somehow we are the "tards" as you put it.....do you honestly think the HKS will last twice as long as the X02?

Or does spending twice the money for the same or less power make you feel good? Curious on your outlook....

AND FYI

Resonators alone can cure rasp, it in no way 100% proves the X pipes do it on their own.....the x pipe helps flow, but may not cure all the pulses as well as the resonators.....Fast Intentions resonates their X pipe for this reason otherwise why wouldnt they just throw the X pipe up their by itself....because rasp would still be present -- for 1100+ you get more for your money with Fast Intentions than with HKS

 

I quickly posted that link from work, but it does say a non-resonated x-pipe will be raspy while a resonated wont.

So, you can easily discredit my source, but we should take yours for gospel?

Here's some more people complaining of a raspy x-pipe

http://www.mustangforums.com/m_1097253/tm.htm

another

http://www.mustangforums.com/archive...3655086-1.html

another

http://www.chicagolandmustang.com/fo...p?t-12530.html

But all this is pointless, because I know someone with an x-pipe with rasp, and I have an h-pipe with 0 rasp. Worst comes to worst, I should have rasp, but I don't, can you explain that? Or maybe I really have an x-pipe and I'm just too dumb to tell.

Like I said, a lot of it has to do with the size and position of the h-pipe. Same goes for the x, and the exhaust itself comes into play with the rasp.
If you like the HKS more power to you. I just feel it's overpriced and I don't like the sound of it. But please don't preach supremacy of your product over the xO2 based on the fact it comes from HKS.

 

From 5.0 magazine:

H-pipe makes more power up until 5200 rpm

http://www.mustang50magazine.com/tec.../photo_01.html

 

The statment in "XXX" is what she said....

The H pipe is superior to no cross flow at all
The X pipe is superior to the H pipe

That being said an X02 exhaust with an X pipe setup would be superior to an HKS set up in a similar fashion....at least in terms of potential flow/power out put

Also the X02 w/X pipe would probably be about HALF the cost of the HKS setup she is running.

SHe has yet to say why she feels the HKS is worth DOUBLE the price...I am patiently waiting for that tap dance

 

No tap dance here. Just more facts on why not to get an x02.

http://www.350zmotoring.com/forums/s...ad.php?t=45748

"I think that's the X02 racing (HKS knock-off). This has been discussed at the "other site" you can find it if you browse the intake exhaust forum. Basically the only diff is the thinner pipe walls and no HKS badge."

"Quote:Originally Posted by Steve350Z
just remember, you get exactly what you pay for. i see that thing rusting out in 6-8 months
+100"

============================

The x02 has thinner pipe walls? WTF!? That means cracks and broken welds from fatigue, heat, vibration, corrosion, etc... Yeah, that's a great imitation HKS you got there~

BTW, x02 doesn't even sell this piece of junk anymore on their website... Hmmm, must really be a great product. Now I'm starting to feel bad you got stuck with yours.

I'll keep my authentic x-piped HKS thank you~ :-)