Straight Pipe or H Pipe?
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Old March 23rd, 2011, 10:39 AM   #1
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Straight Pipe or H Pipe?


I got a quote from a guy today at a local muffler shop and he wanted to do two straight pipes for true dual Flowmaster 40's. What would be the difference as far as sound and power between the straight pipe and the H pipe? And how much more would it cost for a fabricated h pipe?
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Old March 23rd, 2011, 10:42 AM   #2
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I have straight pipes/no-crossover into thrush welded mufflers and it sounds really good. I think an h-pipe is good if you want a quieter tone. I'm not too sure. I can give you a clip of mine.
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Old March 23rd, 2011, 10:46 AM   #3
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h-pipe is good for a deeper tone....Honestly, exhaust is such and upgrade and since your getting flow 40s, you'll probably be happy with either...Im getting an h pipe myself..
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Old March 23rd, 2011, 10:48 AM   #4
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I'm honestly a fan of both, you can't lose with either.
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Old March 23rd, 2011, 11:01 AM   #5
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H-pipe for sure. It will give a deeper tone to your six, which is always a good thing.
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Old March 23rd, 2011, 11:02 AM   #6
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Originally Posted by Ur Panic View Post
I have straight pipes/no-crossover into thrush welded mufflers and it sounds really good. I think an h-pipe is good if you want a quieter tone. I'm not too sure. I can give you a clip of mine.
I've heard the H pipe gives a deeper, throatier tone than a straight pipe. And yeah let me see a clip of yours.
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Old March 23rd, 2011, 12:48 PM   #7
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That's stock, I have a Cold Air Intake now and it sounds deeper, but just as loud. The reason I went divorced is for the loudness & snap crackle pop.
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Old March 23rd, 2011, 01:05 PM   #8
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Originally Posted by Ur Panic View Post
YouTube - 2002 Mustang Divorced Duals with Thrush Welds

That's stock, I have a Cold Air Intake now and it sounds deeper, but just as loud. The reason I went divorced is for the loudness & snap crackle pop.
Sounds nice, I might just go with the straight pipes (divorced).
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Old March 23rd, 2011, 03:20 PM   #9
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Originally Posted by bb25 View Post
Sounds nice, I might just go with the straight pipes (divorced).
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Old March 23rd, 2011, 05:58 PM   #10
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There's not going to be a big power difference between the two. Due to our engines being even firing we don't need the crossover to equalize backpressure. The only real difference you'll notice in performance is a small loss of low end torque if you go with a larger diameter tube size (stock is 2.25"). Everyone else has basically told you about the sound differences between divorced pipes and an h pipe. Head over to Youtube or check the exhaust sticky if you want to hear what the difference midpipe/muffler combos sound like.
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Old March 23rd, 2011, 06:43 PM   #11
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I would go with an H pipe, but i might be a bit biased because thats what i have.
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Old March 23rd, 2011, 06:47 PM   #12
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I have Flowmaster 40's true duals trust me you wont regret getting Flowmaster 40s
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Old March 23rd, 2011, 07:15 PM   #13
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Like said u won't lose with either ,both are highly recommended by everyone so in the end....winning lol
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Old March 23rd, 2011, 07:38 PM   #14
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what most of you are forgetting is that the OP is in an s197 which is the 4.0L....which has a raspier tone then a new edge. the h-pipe is noticable on them
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Old March 23rd, 2011, 08:05 PM   #15
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Originally Posted by 6ER THEN I 8ER View Post
what most of you are forgetting is that the OP is in an s197 which is the 4.0L....which has a raspier tone then a new edge. the h-pipe is noticable on them
idk about that. 4.0's sound smooth as a bmw to me. my friend has a 4.0 with American thunder duals and it only sounds a little raspy at idle but on the throttle its a much smoother sounding engine. i actually kinda like it because everyone knows its a six because its such a smooth v6ish sounding exhaust, and i think v6's sound better smoother.
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Old March 23rd, 2011, 08:07 PM   #16
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Originally Posted by walt1120 View Post
idk about that. 4.0's sound smooth as a bmw to me. my friend has a 4.0 with American thunder duals and it only sounds a little raspy at idle but on the throttle its a much smoother sounding engine. i actually kinda like it because everyone knows its a six, and i think v6's sound better smoother.
again it's an opinion thing..if you think they sound smoother then more power to you. i hear more rasp, and when i hear one with a nice h pipe it makes me smile
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Old March 23rd, 2011, 08:09 PM   #17
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Originally Posted by 6ER THEN I 8ER View Post
what most of you are forgetting is that the OP is in an s197 which is the 4.0L....which has a raspier tone then a new edge. the h-pipe is noticable on them
my fault, good thing to point out, I'd go h-pipe then.
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Old March 23rd, 2011, 08:15 PM   #18
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Originally Posted by 6ER THEN I 8ER View Post
again it's an opinion thing..if you think they sound smoother then more power to you. i hear more rasp, and when i hear one with a nice h pipe it makes me smile
yeah he has divorced duals like me. my cars always sounded deeper and raspier than his. now it sounds beast that i have a cam lol
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Old March 23rd, 2011, 08:18 PM   #19
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Originally Posted by walt1120 View Post
yeah he has divorced duals like me. my cars always sounded deeper and raspier than his. now it sounds beast that i have a cam lol
lol until 3k RPM's...at least my friends 4.3 cammed v6 did

you gonna track it this summer?
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Old March 23rd, 2011, 08:19 PM   #20
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Originally Posted by 6ER THEN I 8ER View Post
lol until 3k RPM's...at least my friends 4.3 cammed v6 did

you gonna track it this summer?
yup, 4.10's and posi are goin on this weekend
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