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Old 06-01-2013, 08:26 PM   #1
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H Pipe or X Pipe?

Hey guys, I've been looking at the x pipe vs h pipe for the 2013 mustang gt; I was wondering: 1) what type of pipe do I have stock and 2) what type of pipe gets the most hp/tq. Thanks.
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Old 06-01-2013, 08:50 PM   #2
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Welcome to Mustang Evolution!

According to Lethal Performance, the X-pipe offers slightly better Horsepower and Torque. But, the H-pipe offers more of the classic muscle car growl.
And your stock pipe is a H-pipe.
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Old 06-01-2013, 09:17 PM   #3
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Quote:
Originally Posted by Entotalenigma View Post
Hey guys, I've been looking at the x pipe vs h pipe for the 2013 mustang gt; I was wondering: 1) what type of pipe do I have stock and 2) what type of pipe gets the most hp/tq. Thanks.
stock H is at many points 2.25" where is an after market pipe will be 3". Depending on the sound you like X will be raspy and H will be deep and rumbly. Also H has a cleaner sound vs the X at the higher RPM range. The X just sounds like a mush of loud, the H doesn't.

as for power, you won't really notice any change of one over the other that is worth your trouble. The difference is arguable in acceptable variance tolerance in the dynos.
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Old 06-01-2013, 09:28 PM   #4
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Thanks guys. This was helpful. I think I am going to stick with h pipes and probably look to change to a 3" aftermarket.
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Old 06-01-2013, 09:31 PM   #5
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Thanks guys. This was helpful. I think I am going to stick with h pipes and probably look to change to a 3" aftermarket.
are you looking to go catless or keep the cats?
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Old 06-01-2013, 09:34 PM   #6
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are you looking to go catless or keep the cats?
I live in ny and due to emissions laws I don't believe I have a choice and will have to keep the cat. Why? Is there a benefit to going cat-less?
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Old 06-01-2013, 09:39 PM   #7
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I live in ny and due to emissions laws I don't believe I have a choice and will have to keep the cat. Why? Is there a benefit to going cat-less?
Well about 15-20 rwhp. But emission enforced states suck. Well make sure to get a modular H pipe. The over the axle pipes are 2.75" so the 3" H pipe will need to have 2.75" ends to hook up.
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Old 06-01-2013, 09:48 PM   #8
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Well about 15-20 rwhp. But emission enforced states suck. Well make sure to get a modular H pipe. The over the axle pipes are 2.75" so the 3" H pipe will need to have 2.75" ends to hook up.
Did u remove your cat? Does this trigger any codes? And what are some of the pros and cons, ie mpg's, u mentioned hp, sound, etc.
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Old 06-01-2013, 09:54 PM   #9
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Did u remove your cat? Does this trigger any codes? And what are some of the pros and cons, ie mpg's, u mentioned hp, sound, etc.
Sure did remove em. It will throw codes unless you tune the car or run mil eliminators. Mpg were not affected for me. Car will get insanely loud depending on your axle backs.
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Old 06-01-2013, 09:59 PM   #10
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Sure did remove em. It will throw codes unless you tune the car or run mil eliminators. Mpg were not affected for me. Car will get insanely loud depending on your axle backs.
Got it. Thanks.
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Old 06-02-2013, 12:23 AM   #11
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Sure did remove em. It will throw codes unless you tune the car or run mil eliminators. Mpg were not affected for me. Car will get insanely loud depending on your axle backs.
MIL eliminators?
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Old 06-02-2013, 12:29 AM   #12
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I plan on doing the catless Xpipe to achieve the ghost tune , but need about 800 bucks to do it
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Old 06-02-2013, 12:29 AM   #13
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MIL eliminators?
They hook into the o2's to bypass where cats would be = no cel for emissions
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Old 06-02-2013, 12:30 AM   #14
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I plan on doing the catless Xpipe to achieve the ghost tune , but need about 800 bucks to do it
Baby on the way, no x pipe fo u! LOL!
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Old 06-02-2013, 12:47 AM   #15
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Baby on the way, no x pipe fo u! LOL!
Lol my wife and I just found out that we're having a baby. Now I need to find a car seat that looks good in the 'stang!
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Old 06-02-2013, 01:43 AM   #16
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Lol andysautosport has like $300 racing seats for babies :p. but its for like toddlers
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Old 06-02-2013, 04:51 AM   #17
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If your emissions station only utilizes an ALDL plug and no sniffer in the tailpipe you can run catless and tuned and get away with it. MIL eliminators basically send a generic signal back to the PCM telling it, "hey, all's good back here" so it won't trigger any O2 related codes.
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Old 06-02-2013, 07:43 AM   #18
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Mil eliminators are not currently offered for the 2011+, so really it's "tune or bust"
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Old 06-02-2013, 09:16 AM   #19
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Mil eliminators are not currently offered for the 2011+, so really it's "tune or bust"
That and you still would need to address the COT feature.
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Old 06-02-2013, 11:08 AM   #20
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That and you still would need to address the COT feature.
What is the cot feature?
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Old 06-02-2013, 11:11 AM   #21
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What is the cot feature?
I am thinking he means the engine dumping unburnt gas trying to cool the cats. Even defoulers wouldn't stop the engine from doing this.
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Old 06-02-2013, 11:31 AM   #22
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What is the cot feature?
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I am thinking he means the engine dumping unburnt gas trying to cool the cats. Even defoulers wouldn't stop the engine from doing this.
Exactly. It's the Cat Overtemp Feature that you can't just ignore unlike previous years where you could use mil eliminators.
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Old 06-02-2013, 03:47 PM   #23
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They hook into the o2's to bypass where cats would be = no cel for emissions
Got it, Thanks
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