Listening to various soundclips, I've decided that duals with an H pipe sounds very good. If sound is the primary concern, I've also heard that an H pipe is the way to go.
One shop told me that only V8's need an H pipe, and duals would be $550. The second shop said, V6s only need a Y pipe, and duals would be $500.
Two concerns.. one is price. 2 years ago, I put duals on my Dodge Ram, and it was only $360 total, so I thought I could do it around that price. Secondly, should I do an H pipe, or is the Y fine?
I spoke to someone at ninosport the a couple weeks ago and I believe they mentioned that since the v6 is an even firing engine that the h or x is not really necessary
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Joined: 5/3/2006 From: Norfolk, VA Status: offline
I just did the reverse Y when I went with dual mufflers. I heard so many stories about how opening up the exhaust too much on a V6 would be bad or back-pressure that I didn't want to chance sacrificing performance just so I could brag about having an H-pipe. I noticed an improvement even with my reverse Y. The stang sounds so much healthier and she breathes much better. She doesn't sound like she is straining anymore during hard acceleration.
FYI, I used a stock GT drivers side over the axle pipe and a set of GT take-off mulers, and the shop fabbed up the other half of the Y-pipe.
I spoke to someone at ninosport the a couple weeks ago and I believe they mentioned that since the v6 is an even firing engine that the h or x is not really necessary
+1. It will sound different, but not necessarily worse with a Y. There is really no point power wise to an H or X in our car.
Hey Pantera 72 , I thought you mentioned in another post that you were thinking about going with the y system from ninosoport?? I'm about ready to order it.
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Joined: 1/3/2007 From: Southeast Virginia Status: offline
See I'm having a hard time deciding myself. It's either going be the Ninosport, Pypes Performance True Dual System w/Street Legal x Pipe or GT x- Pipe & Mid Pipe. I already bought the GT takeoff mufflers.
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Joined: 1/3/2007 From: Southeast Virginia Status: offline
quote:
ORIGINAL: AmericanICON
Listening to various soundclips, I've decided that duals with an H pipe sounds very good. If sound is the primary concern, I've also heard that an H pipe is the way to go.
One shop told me that only V8's need an H pipe, and duals would be $550. The second shop said, V6s only need a Y pipe, and duals would be $500.
Two concerns.. one is price. 2 years ago, I put duals on my Dodge Ram, and it was only $360 total, so I thought I could do it around that price. Secondly, should I do an H pipe, or is the Y fine?
That's the thing.....so many shops will give you different preferences as well as quotes. The shop that I plan on using was recommended by my Ford dealer. He told me to use X pipes. If they do all the work it would cost between $400-480. They told me if I get the parts it would be $80 - 100. That's why I am trying to get the best deal and I'm having a hard time deciding.
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Joined: 8/17/2006 From: Los Angeles Ca Status: offline
That's strange, when I was heavily involved with 70's German made Ford Capris(with smaller sized Cologne V-6s), the first thing we'd do is put a full length dual exhaust with an H-pipe(stock early version V-6 Capris had duals running underneath, but over the axle the right side pipe would cross behind the diff and meet up next to the left pipe and exit through a two inlet/two outlet muffler on driver's side). This mod would wake the car up considerably and in conjunction with LTs necessitated re-jetting the carb(or better yet putting on a larger carb) and re-curving the dizzy to get the most out of the better breathing......I learned the hard way, I blew a head gasket after going to LTs and true duals/H-pipe without re-jetting the carb( car ran too lean, overheated and kaboom!). I would think a CAI/tune would be needed before improving the single exhaust on S197 6ers
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Joined: 5/3/2006 From: Norfolk, VA Status: offline
quote:
ORIGINAL: davesyo
Hey Pantera 72 , I thought you mentioned in another post that you were thinking about going with the y system from ninosoport?? I'm about ready to order it.
It might have been me, I don't remember. I do know I got a complete GT takeoff exhaust off ebay for $80 that helped make up my mind as to what to do.
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Joined: 9/19/2006 From: San Angelo,TX fighting polygamy since 4/4/08 Status: offline
I just got a quote the other day of $350 for duals and the h pipe was not recommended by this shop. It would also be using 2.25 pipes for the entire system. I am probably going back on friday to have it done.
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Joined: 12/22/2004 From: Ludlow, Mass Status: offline
V6s are even fireing motors thus they dont NEED an H pipe, it will just alter the sound
quote:
ORIGINAL: Pantera72
I just did the reverse Y when I went with dual mufflers. I heard so many stories about how opening up the exhaust too much on a V6 would be bad or back-pressure that I didn't want to chance sacrificing performance just so I could brag about having an H-pipe. I noticed an improvement even with my reverse Y. The stang sounds so much healthier and she breathes much better. She doesn't sound like she is straining anymore during hard acceleration.
i would not go this route, by having a way to go two places you will loose velocity sacrificing power, also, you do NOT want back preasure, backpreasure is the force that the motor must make in order to push the exhasut gasses out of the car, you want a properly sized pipe so you can have maximum velocity to get the exhaust out as quick as possible, try running a mile breathing through a straw
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Joined: 5/11/2005 From: Newark, DE USA Status: offline
quote:
ORIGINAL: 8cd03gro
quote:
ORIGINAL: davesyo
I spoke to someone at ninosport the a couple weeks ago and I believe they mentioned that since the v6 is an even firing engine that the h or x is not really necessary
+1. It will sound different, but not necessarily worse with a Y. There is really no point power wise to an H or X in our car.
On a Naturally Aspirated (NA) 4.0L, I think the only benefit to running duals with an X- or H- pipe would be improved sound. There is conflicting info about duals on a NA 4.0L providing a performance benefit (or detriment due to an alleged drop in backpressure). Regardless, an X- or H- pipe ties the two pipes together to produce the sound of six cylinders working in harmony, whereas duals without any crossover will sound like two 3 cylinder engines fighting against each other (IMO).
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Joined: 2/26/2007 From: Green Mt State Status: offline
quote:
ORIGINAL: 07 Stang
See I'm having a hard time deciding myself. It's either going be the Ninosport, Pypes Performance True Dual System w/Street Legal x Pipe or GT x- Pipe & Mid Pipe. I already bought the GT takeoff mufflers.
Hi 07Stang!
I've got the Pypes Performance True Dual System w/Street Legal x Pipe and Street Pro mufflers.
Holy Sh!t
LOVE THIS SETUP.
Absolutely no loss in performance and the sound gain is IMMENSE!
From cold idle being 106x louder than stock and 100+dB in the highway, these bad-boys are just what the doctor ordered!
Even cured my problem of "Hesitation On Acceleration After Long Cruise" TSB (that the new fuel pump didn't fix!).
Best mod I've done.
Next year, tuner and rims.
Check out my vids! (the mufflers were broken in when video was made)
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Joined: 1/3/2007 From: Southeast Virginia Status: offline
quote:
ORIGINAL: SOHCman
quote:
ORIGINAL: 07 Stang
See I'm having a hard time deciding myself. It's either going be the Ninosport, Pypes Performance True Dual System w/Street Legal x Pipe or GT x- Pipe & Mid Pipe. I already bought the GT takeoff mufflers.
Hi 07Stang!
I've got the Pypes Performance True Dual System w/Street Legal x Pipe and Street Pro mufflers.
Holy Sh!t
LOVE THIS SETUP.
Absolutely no loss in performance and the sound gain is IMMENSE!
From cold idle being 106x louder than stock and 100+dB in the highway, these bad-boys are just what the doctor ordered!
Even cured my problem of "Hesitation On Acceleration After Long Cruise" TSB (that the new fuel pump didn't fix!).
Best mod I've done.
Next year, tuner and rims.
Check out my vids! (the mufflers were broken in when video was made)
SOHC
Awesome! One question, do you think RPM would sell me the Pypes True Dual System kit minus the mufflers? I've been trying to call them, either the phone is busy or when I get through I am disconnected.
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Joined: 2/26/2007 From: Green Mt State Status: offline
quote:
ORIGINAL: 07 Stang
Awesome! One question, do you think RPM would sell me the Pypes True Dual System kit minus the mufflers? I've been trying to call them, either the phone is busy or when I get through I am disconnected.
I got dual with Ford Racing X pipe, left mid-pipe , GT mufflers and brackets from Ford. The car runs stronger and the sound is loud at take-off, but quieter at freeway speed. It even cured my problem of hesitation on acceleration. I am very happy with the mod.
< Message edited by tientran -- 5/22/2007 1:51:26 PM >
Posts: 1396
Joined: 5/3/2006 From: Norfolk, VA Status: offline
quote:
ORIGINAL: mustangman02232
V6s are even fireing motors thus they dont NEED an H pipe, it will just alter the sound
i would not go this route, by having a way to go two places you will loose velocity sacrificing power, also, you do NOT want back preasure, backpreasure is the force that the motor must make in order to push the exhasut gasses out of the car, you want a properly sized pipe so you can have maximum velocity to get the exhaust out as quick as possible, try running a mile breathing through a straw
V6s are even fireing motors thus they dont NEED an H pipe, it will just alter the sound
quote:
ORIGINAL: Pantera72
I just did the reverse Y when I went with dual mufflers. I heard so many stories about how opening up the exhaust too much on a V6 would be bad or back-pressure that I didn't want to chance sacrificing performance just so I could brag about having an H-pipe. I noticed an improvement even with my reverse Y. The stang sounds so much healthier and she breathes much better. She doesn't sound like she is straining anymore during hard acceleration.
i would not go this route, by having a way to go two places you will loose velocity sacrificing power, also, you do NOT want back preasure, backpreasure is the force that the motor must make in order to push the exhasut gasses out of the car, you want a properly sized pipe so you can have maximum velocity to get the exhaust out as quick as possible, try running a mile breathing through a straw
Printable Version
2 Shops said V6s do not need H pipes - 
( car ran too lean, overheated and kaboom!). I would think a CAI/tune would be needed before improving the single exhaust on S197 6ers
I do know I got a complete GT takeoff exhaust off ebay for $80 that helped make up my mind as to what to do. 
