I was talking to a friend of mine the other day, and he reccommended me getting H-pipes for the 03 GT, instead of X-pipes. He said it will sound a lot better. What do you exhaust experts think? What is the best setup for a loud exhaust system? </P><edited><editID>03SVTcobraa</editID><editDate>37886.9675347222</editDate></edited>

OOhhh, I am elated that were experts lol...</P>


In general H-Pipes will sound better (louder) and give more low end torque</P>


X-Pipes will sound different, not as loud usually, and give more higher rpm hp</P>

doesnt x give more torque? anyways i suggest X-pipe, much better performence

Im pretty sure that in most any circumstance an h-pipe will give more torque, just not as much hp. Kinda like the same thing as going with larger exhaust pipe diameter.

X pipes will give more torque AND horespower. More horses than even open headers.

http://www.carcraft.com/techarticles/69238/index.htm

In summary:

open headers:max hp: 333 max torque: 304
2.5" w/ H pipe:max hp: 323 max torque: 296
2.5~3" w/ X pipe: max hp: 335 max torque: 302

X pipes will give more torque and HP. It provides less of a resistance path than an H configuration. Remember, the faster the flow the more performance.

Interesting numbers, but would it be safe to assume that the low end torque of an h-pipe is higher than that of an x-pipe?</P>

Interesting numbers, but would it be safe to assume that the low end torque of an h-pipe is higher than that of an x-pipe?</p>

No. An H pipe is only effecient at very low rpm's.....and so is an X pipe. Granted at low end (like, idle-2,000) numbers won't be huge, but every peice of power adds up.

I'd say it's safe to assume that an X pipe is the best cinfiguration period.

jeep... I think the h-pipe..reason being it acts like a bigger exhaust in a way that helps mild modded cars the x pipe and exhaust gases cancel one another is why for the lower tone is a good pipe for well modded car...just my opinion</P>


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Get a Dr. Gas X pipe with electric cut outs. These are way too cool for street or track use.

get a dr.gas nascar boom tube with no mufflers thats the best</P>

An X-pipe will sound like a European car, an H-pipe will sound like a 60's muscle car. If you want loud sound, I heard the Delta Flows reduce the sound level, but that is based on what someone told me. But I knew someone who put those on his 02 GTand it sounded fairly loud, even w/o aftermarket h-pipe. My car was louder than his though. I have a 96 GT and my car is very loud and has an aggressive sound. I have the 40 series Flows (this has the most aggressive sound) without the Delta Flow anda 2.5" BBKoff road H-pipe w/o cats.

actually an h pipe and x pipe are junctioned to equal out exhaust pulses and increase scavenging. the x pipe does it more effeciently than the h pipe because the transition is smoother. therefore the x pipe makes more power overall and results in a smoother sounding car that will have a little more of a howl to it. the h pipe will make less power but it ill be louder and a little more choppy sounding.

the delta flows are made with a delta int he front of them which is supposed to reduce interior resonance. but they also are quieter because the cancel out the resonance.

No offense to anybody, but I got two totally different answers lol. The majority of you suggest x-pipe. What brand should I go with, or does it matter? And 40 series flows? Would this be a good sound to my GT? Thanks for all the help.

Dr.gas makes an awsome x pipe and 40 series flows are the way to go. but if you want a different sound try spintech. www.spintechmufflers.com (http://www.spintechmufflers.com)</P>

I use prochamber, way more power than x or h pipe, but is quiter than both</P>

how much is way more power?

If you want hard core sound, go with the H-pipe. If you want performance, go with the X-pipe. From what you said earlier, you are looking for sound and not as much performance b/c you were gonna do other upgrades to it. GO WITH THE H-PIPE! You won't be dissapointed in the sound trust me, I have one! It will turn heads!!!

From what i've read, Both the H-pipe and X-pipe are almost equal performancewise, the X pulling a little more HP than the H. The H will give you a loud azzed sound, the X will make it "crisper". It will have a nice sound to it. Personally I like the X pipe better, thats whats goin on my car. I'm most likely goin to get the Bassani X for my ride.

X pipe - upper rpm power increase</P>


H pipe - Off the line power increase (which GT's lack already).</P>


If you plan on dragging your car, I'd say an h-pipe would be a good idea. Mustang's lack the torque a V8 should have...you need TQ to get off the line and HP to push you the rest of the way! Let the H-pipe fufill your torque needs, and all the other mods fufill your HP needs, while making minor contributions to torque along the way ;)</P>

thanks for posting this thread...was really wanting to know the difference...

is your avatar humping a barrel

honda emblem

LMAO

haha its funnier now, I dun know why I didnt see that

Im hearing way more power in comparing X or H pipes. Neither one produces high hp numbers in and of themselves anyway. I see cars running H pipes that are faster than cars with X pipes and vice versa. We all have. Go with the one that sounds the best to you. Im curious to know which one produces the best average torque?

H-pipes are for TQ (which Mustangs lack) &amp; X-pipes are for HP. Both make nice gains in both categories...but you get the idea.

jeep... I think the h-pipe..reason being it acts like a bigger exhaust in a way that helps mild modded cars the x pipe and exhaust gases cancel one another is why for the lower tone is a good pipe for well modded car...just my opinion</P>


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Actually, the H pipe is a cheap method to help cancel out the differences in exhaust pulses between cylinder banks, in essence, giving twice the pulse frequency and speeding up exhaust flow.</P>


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The X pipe does the same method, but instead of using a perpendicular pipe to do it, it uses a great flowing X shape. This helps torque production down low (which you people don't seem to comprehend one thing....BACKPRESSURE IS HORRIBLE) and give sweet ass numbers on the top end.</P>


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It's an excelent solution for race or street.</P>

Also, the Flowmaster Deltaflows.....the Arrows are in there to create a vacume to speed up exhaust velocity. It wasn't put there to quiet it down, that was more of an after-effect. Go with Magnaflow or Dynomax, they both sound sweet and deep, and have no baffles to get in the way of the exhaust and restrict it like Flowmasters do.</P>


Inmyrearview:</P>


"Im hearing way more power in comparing X or H pipes. Neither one produces high hp numbers in and of themselves anyway. I see cars running H pipes that are faster than cars with X pipes and vice versa. We all have. Go with the one that sounds the best to you. Im curious to know which one produces the best average torque"</P>


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Bulls**t. Not with compareable mods. If you're pitting a nitrous H pipe up against a X pipe with an intake....I'll believe you.</P>

x pipes are better they use the x pipes in nascar uses this same set up an the 2000 cobra r also.its not as loud but its very smooth .an deep

Jeep45238, on two vehicle being exactly the same except one having a 2-1/2 in. H-pipe exhaust and the other having a 2-1/2 in X-pipe exhaust do you really think one is going to be SIGNIFICANTLY faster than the other? I did state SIGNIFICANTLY. Im now putting down 382RWHP and im running an H-pipe. Should I spend $400 or so on an X-pipe to get 10-15HP more?

Define signifigantly. Do you mean a full blown second or a 2/10 reduction in ET's?

You do NOT need to spend $400 to get an X pipe.

Simply take 2 45* mandrel bend angles and hack off the top, and then weld them together.

) ( &lt;~2 45* bends

)(&lt;~Joined to form an X pipe.



If it was my car, I would definately put in the X pipe. Let's face it, the more you do to the car, the more important it becomes to have a free flowing exhaust, expecially with a blower and heads coming into the picture on your car.

Well we both know that with the circumstances I stated above that neither car will be more than a second faster than the other. Also, if someone has a car that could use some low end toque would you recommend an H-pipe? The X-pipe and H-pipe has been debated time and time again on many foruns such as this one. If the X-pipe was clearly such a better pipe, there would be no debate. Really the only difference is the fact that they provide power at different points in the power band. They both provide about the same AVERAGE HP. Check out:
www.mustangexhaust.com/tech/HvsX/HvsX.htm
The proof is in the dyno numbers.

Yes, the proof is in the numbers. Besides, in that comparison, the stock exhaust made just as much average horsepower as the H pipe and the X pipe. We both know that the stock won't stand a chance against the H or the X.


The X pipes are worth at least as much power as open headers, both in the horsepower ratings and in the torque ratings.

http://www.carcraft.com/techarticles/69238/index.html

"Finally, we swapped on the stepped X-pipe setup and were impressed to see power levels equal to the open headers: 335 hp at 6,300 hp and 302 lb-ft at 5,200. That’s a gain of 12 rear-wheel horsepower, although it turns out we weren’t really giving anything up or gaining anything extra from the open headers. So the car’s happy, and our ears are even happier!"

I totally believe it's worth it, but you may not.

Different results on different cars, I wouldnt be suprised if someone could give results of h-pipes putting out more hp than x-pipes. I saw an x-pipe swap done on a 2001 Cobra and it made a whopping 2 more peak hp that STOCK CATS, the h-pipe offered identical gains as the x-pipe. I thinkpipe sizeand type of car play a role in the results too. <edited><editID>mdvaldosta</editID><editDate>37902.4381828704</editDate></edited>

2 more peak horsepower is alot if it was on a lawnmower engine

Dont get me wrong if you prefer, X-pipe thats cool and you will hopefully get some gains. Im just cautious in saying that the X-pipe produces HP numbers that are a lot higher than the H-pipe. But I guess it depends on ones definition of "a lot." Also manufacturers of these products seem to always exaggerate the hp numbers or do dynos on some stroker or extemely high output type motor that of course will yield some modest gains or the gains that they advertise, but not the kind of gains a typical comsumer will see in the "real" world. The perfect example of this are shorty headers. Up to 20hp?I have a s/c and im lucky if they even gave me 8-10hp. But I see manufacturers advertise this crap all day long. IMHO, H AND X pipes serve to be beneficial, but in different ways.

"A lot" depends on what's done to the motor. The more power you currently make, the more the gains you can get.