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Old 05-14-2015, 04:44 PM   #1
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H-Pipe or X-Pipe?

Looking to upgrade my pipes after some headers and was wondering what would sound better. 2007 GT with pypes violators axle back mufflers btw.


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---------- Post added at 09:44 PM ---------- Previous post was at 09:44 PM ----------

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Looking to upgrade my pipes after some headers and was wondering what would sound better. 2007 GT with pypes violators axle back mufflers btw.


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Meant to say mufflers not headers


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Old 05-14-2015, 05:06 PM   #2
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Whichever you can get a better deal on honestly. Hit up youtube and listen to some clips if you want to hear them. X pipes are a little raspier which is bad for a chambered muffler but the Violators are straight through so it'll sound fine.
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Old 05-14-2015, 08:24 PM   #3
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My violators are paired with an off road h

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Old 05-15-2015, 10:38 AM   #4
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I have now O/R X-pipe with flow master 40's (Yes, Not the best muffler decision, I know 😒) and I really like how it sounds, it's chingy but not too much and an X-pipe will give you that extra horsepower ( maybe about 5 more or so) at higher speed, while the H-pipe will sound more deep and muscly and also give you several more horses ( Give or take) on the lower speeds. It's just preference really.


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Old 05-15-2015, 10:45 AM   #5
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I have now O/R X-pipe with flow master 40's (Yes, Not the best muffler decision, I know 😒) and I really like how it sounds, it's chingy but not too much and an X-pipe will give you that extra horsepower ( maybe about 5 more or so) at higher speed, while the H-pipe will sound more deep and muscly and also give you several more horses ( Give or take) on the lower speeds. It's just preference really.


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No it won't.


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Old 05-15-2015, 11:34 AM   #6
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I wish I could find a Shorty h pipe for my 5.0 that would work with my sw lth.
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Old 05-15-2015, 11:37 AM   #7
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My violators are paired with an off road h

---------- Post added at 06:24 PM ---------- Previous post was at 06:24 PM ----------

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Do the cats come off with the offroads?


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Old 05-15-2015, 11:39 AM   #8
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Do the cats come off with the offroads?


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Yes, off road pipes don't have cats


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Old 05-15-2015, 12:05 PM   #9
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Yes, off road pipes don't have cats


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Ah, its illegal to take off the cats in nc so that nots really an option. Sounds awesome though.


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Old 05-15-2015, 12:46 PM   #10
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Its illegal to take off the cats in any state.

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Old 05-15-2015, 01:41 PM   #11
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^ truth
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Old 05-15-2015, 01:51 PM   #12
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Oh i didnt know that haha


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Old 05-15-2015, 01:58 PM   #13
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But it isn't really a big deal unless your state has inspections
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Old 05-15-2015, 04:05 PM   #14
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But it isn't really a big deal unless your state has inspections

It does


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Old 05-15-2015, 04:17 PM   #15
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Well then your options are limited
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Old 05-15-2015, 05:07 PM   #16
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Nothing wrong with a catted pipe. People get way too hung up on or pipes. It's like... 1hp to run cats and you'll never have to worry about a cop peeking under the car and impounding it. I'm replacing the or pipe I got on my car with a VRS(upr) catted x.

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Old 05-15-2015, 05:08 PM   #17
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For me it was $200 cheaper so I went off road. Pretty much only deciding factor
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Old 05-15-2015, 05:45 PM   #18
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Ya. Im just trying to figure out what peoples opinions are on x and h's. If the offroads were an option i would definitely do those


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Old 05-15-2015, 05:48 PM   #19
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Just a difference in soumd, nothing else. Just YouTube a bunch and get an idea of what you like.
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Old 05-15-2015, 06:11 PM   #20
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For me it was $200 cheaper so I went off road. Pretty much only deciding factor
Till you pay a fix it ticket... UPR catted X is $315 shipped for us 04-down guys. That not much at all for a real nice pipe.

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Old 05-15-2015, 06:17 PM   #21
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Till you pay a fix it ticket... UPR catted X is $315 shipped for us 04-down guys. That not much at all for a real nice pipe.

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Meh Central Washington is pretty relaxed when it comes to that, lots of catless guys around here.
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Old 07-05-2015, 01:49 PM   #22
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Its illegal to take off the cats in any state.

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....so is speeding
....so is drag racing

Plenty of vehicles/motors running without cat's....unless your State does emissions testing I wouldn't worry about it to much. Another option is high flow cats or hollowing out your cat's.
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Old 07-05-2015, 03:38 PM   #23
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Off road X will be more loud and raspy , off road H won't be so loud .. but alot more deeper sounding.

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Old 07-05-2015, 06:53 PM   #24
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....so is speeding
....so is drag racing

Plenty of vehicles/motors running without cat's....unless your State does emissions testing I wouldn't worry about it to much. Another option is high flow cats or hollowing out your cat's.
Except you can be in much deeper **** for removing emissions equipment depending on how bad of a day the cop is having. They can tow and impound your car if they feel like it plus it is a federal offense.

There is literally no reason to not run cats except to be as loud as possible. And it is my experience that the loudest cars are often some of the slowest.
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Old 07-05-2015, 07:22 PM   #25
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Except you can be in much deeper **** for removing emissions equipment depending on how bad of a day the cop is having. They can tow and impound your car if they feel like it plus it is a federal offense.

There is literally no reason to not run cats except to be as loud as possible. And it is my experience that the loudest cars are often some of the slowest.
All of the straight piped Hondas here can confirm this.
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Old 07-05-2015, 07:38 PM   #26
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American V8s too. Don't know how many "louder than ****" Mustangs out there are a few bolt ons and an O/R pipe/catback and probably wouldn't be much faster if at all than one of those Hondas...
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Old 07-05-2015, 07:41 PM   #27
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Definetly how I felt about my car when all it had was outlaws on it
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Old 07-05-2015, 09:21 PM   #28
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No it won't.


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You will certainly gain some HP by not running cats. You might lose a little low end torque but you'll gain it up top. Less restriction = better flow. Need some back pressure but your mufflers will provide enough. Not even considering the reduced weight of no cats.
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Old 07-05-2015, 09:24 PM   #29
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You will certainly gain some HP by not running cats. You might lose a little low end torque but you'll gain it up top. Less restriction = better flow. Need some back pressure but your mufflers will provide enough. Not even considering the reduced weight of no cats.
You might gain a single horsepower. Might. Good high flow cats are not restrictive. Roffles at backpressure and if you are worried about the weight of good aftermarket cats vs the straight pipes...
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Old 07-05-2015, 09:57 PM   #30
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I think your skewing the results going from oem to high flow cats. From what I understand you'll gain 2-4 HP going from OEM cats to no cats and yes 0-2 HP from high flow cats to no cats. I'll take more HP for less money any day
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Old 07-05-2015, 09:59 PM   #31
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That's not even considering that the OEM cats could be all junked up inside further reducing flow.
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Old 07-05-2015, 10:08 PM   #32
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I think your skewing the results going from oem to high flow cats. From what I understand you'll gain 2-4 HP going from OEM cats to no cats and yes 0-2 HP from high flow cats to no cats. I'll take more HP for less money any day
Nice argument, 4 HP gain, woah now.
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Old 07-05-2015, 11:05 PM   #33
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Nice argument, 4 HP gain, woah now.
Try thinking big picture. A lot of mods only give minimal gains but that doesn't mean you don't do them. Add them all up and you have nice gains. Only natural to go with non-cats or high flow cats if your putting headers on. Now if your talking a new TB or intske I personally don't think the $/hp gain ratio is wisely spent. Lets be realistic, I don't think anyone's expecting a 20hp gain going catless but for less money than cats your gaining some HP.
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Old 07-05-2015, 11:16 PM   #34
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If it was about money then obviously no one would run cats. Risking a big $$$ ticket or impound to save 0-a few hp is kind of stupid TBTH. High flow cats are not restrictive and that is a fact.

No matter where you live in the USA, its illegal to run on the street with no cats unless your car was built before they were required.
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Old 07-06-2015, 12:13 AM   #35
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Man my car isn't loud at all wth no cats. My
Fox doesn't have them. It has off-road x and flowmaster 40s. My coyote has off-road x and magnaflow streets. It's all about the muffler choice. I actually gained quite a bit of power going to an off-road x on my
Coyote, although it's supercharged it may have helped me more than the n/a cars. Idk about the fox, as it never had them when I purchased it v


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