I was just curious after hearing the new ford GT. How would down pipes with no cats and straight exhaust no muffler or resonators at all would sound. I obviously know it would be loud at WOT but I have been thinking about doing this on my SHO my powerstroke diesel is already straight piped and I love the sound and you can actually keep it reasonably quiet when you want to with a little throttle control. IMO the SHO is way to quiet I like to here that turbo spool.
I've tried this, it is loud and actually not that bad. The only bad thing is the drone you will have inside the cabin with the free-flowing system.
If you were interested in a custom setup I would do straight pipes from the down-pipe back and use some a high-flow resonator and chambered mufflers to kill drone. Kind of like the MDesign exhaust system that is currently for sale, though as it sits it is the same thing as practically a straight exhaust since all the components are high flowing. Throw on some chambered mufflers and I believe you could have something nice and unique.
Mind numbing drone to go along with your loudness.
Unless you build a j pipe resonator tuned to the drone frequency like I did.
Agree with all responses, except... Our turbos are not fed equally with air especially if the OEM "saxophone" is still in place.... No matter what you do make sure there is a X-pipe after the DPs to equalize exhaust pressures... the third cat does this on OEM.
This post is old but I would like to get a better understanding on the significance of an x-pipe. I have an appt on Sept 10th to remove my 3rd cat and resonator. I have Thunderstorm 2.5" catless downpipes to the factory 2.25" 3rd cat and resonator, mufflers are deleted.
New setup will be 2.5" downpipes to 2.5" straight pipes back with tips. No cats, no resonator, no mufflers.
Do I really need an x-pipe? I understand our turbos don't flow evenly and an x-pipe would help to balance back pressure....but what is the benefit of balancing back pressure if the intital flow is uneven? It seems to me an x-pipe would not help the turbos flow evenly so whats the point of balancing the back pressure?
Would it hurt to let them flow naturally, uneven or not? And I wonder if any type of loss of low end torque would actually help my 60ft due to less traction loss.
Any further insight and information will be well received. If collectively we're not sure I'm not having an x-pipe installed.
I don't see how our turbo system flow "unevenly". And in any turbocharged system the turbo charger provides all the "backpressure" the motor will ever need. Any sort of piping or restriction after the turbine increases spool time and reduces performance. So straight through all the way back is best. X-pipe wont change anything.
Side note: If your making 15 psi boost going into throttle body, there has to be atleast 15 psi pressure (backpressure) in the exhaust manifold to drive the turbine.
Thank you! I thought they didn't flow evenly because of what BiGMac said. So up1 for no x-pipe!! 😃
I agree with BigMac. From the factory the third cat balances. Think of it this way. An x pipe can be had for like $20-25 and won't hurt anything if you put it on. Also I have never hear of an instance where an x pipe made something worse or sound worse. It's always been for the better. Currently i have 2.5" catless down pipes to straight 2.5" with an x pipe in the original third cat location back to 2 18" vibrant resonators. It's horrendously loud at times down low, but that's my opinion.
I don't see how they flow uneven. Both heads, both turbo, both exhaust manifolds have identical dimensions and fed from one throttle inlet. Only thing is one turbo is about 2 foot in front of the other, which means nothing.
Quote from: geophb on August 31, 2018, 09:58:14 AM
I don't see how they flow uneven. Both heads, both turbo, both exhaust manifolds have identical dimensions and fed from one throttle inlet. Only thing is one turbo is about 2 foot in front of the other, which means nothing.
There is a lot more than just that. Like the number of bends and at which angle, I don't think it'll make a difference, but putting an x pipe in is not going to have any cons. Only pros if it does do something. I'd rather just pay the $20 for peace of mind that I am optimizing my car to it's fullest.
Quote from: Jordan on August 31, 2018, 10:08:23 AM
Quote from: geophb on August 31, 2018, 09:58:14 AM
I don't see how they flow uneven. Both heads, both turbo, both exhaust manifolds have identical dimensions and fed from one throttle inlet. Only thing is one turbo is about 2 foot in front of the other, which means nothing.
There is a lot more than just that. Like the number of bends and at which angle, I don't think it'll make a difference, but putting an x pipe in is not going to have any cons. Only pros if it does do something. I'd rather just pay the $20 for peace of mind that I am optimizing my car to it's fullest.
That's also a good point. I can have the shop make an xpipe easy. If it doesnt hurt but may help..why not?
Xpipe ☝ 1. Need a tie breaker lol
Quote from: 802SHO on August 31, 2018, 10:18:41 AM
Quote from: Jordan on August 31, 2018, 10:08:23 AM
Quote from: geophb on August 31, 2018, 09:58:14 AM
I don't see how they flow uneven. Both heads, both turbo, both exhaust manifolds have identical dimensions and fed from one throttle inlet. Only thing is one turbo is about 2 foot in front of the other, which means nothing.
There is a lot more than just that. Like the number of bends and at which angle, I don't think it'll make a difference, but putting an x pipe in is not going to have any cons. Only pros if it does do something. I'd rather just pay the $20 for peace of mind that I am optimizing my car to it's fullest.
That's also a good point. I can have the shop make an xpipe easy. If it doesnt hurt but may help..why not?
Xpipe ☝ 1. Need a tie breaker lol
https://www.summitracing.com/parts/jex-sxp4 (https://www.summitracing.com/parts/jex-sxp4)
This is the one I have on my car. Dirt cheap. And also looks a lot better than the one pictured with more direct flow patterns.
Quote from: Jordan on August 31, 2018, 10:22:54 AM
https://www.summitracing.com/parts/jex-sxp4 (https://www.summitracing.com/parts/jex-sxp4)
This is the one I have on my car. Dirt cheap. And also looks a lot better than the one pictured with more direct flow patterns.
Find a stainless one. Aluminized SUCKS.
Guarantee any exhaust shop he is going to is not going to use stainless anyways so what's the difference in the end lol.. It'll hold up fine for many years. Plus that price difference tho
I did talk to the shop today about an xpipe. Its a custom exhaust shop so they said they don't stock much bc they can make it. And yes I can choose all stainless or aluminized. What I am looking for is a set up like this Audi has. Staggered and slanted dual 4" quad tips. I think it looks mean! Will have to cut the rear valance
Quote from: Jordan on August 31, 2018, 10:37:34 AM
Guarantee any exhaust shop he is going to is not going to use stainless anyways so what's the difference in the end lol.. It'll hold up fine for many years. Plus that price difference tho
No, it won't, especially if you live in the snow belt. You might get 2 years out of aluminized up here. Stainless is better in every way except price.
Ah, wasn't looking at location. I don't really drive my car much in the snow much being in Missouri so I wasn't account for that.
Also dual tips like that won't fit. A single 4" exit would, but you will have to modify the rear to fit those size of tips.
Angles and bends are identical throughout the motor and manifold ;D
Dual 4" on a taurus?
Has anyone done an h pipe? Wondering because sound is different between h pipe,x pipe, and straights
Because of the bootsted nature, any level of widening as long as it is done right helps spin-up and response of the turbos. 4" MIGHT be a bit much with the stokc snails but i defeer to those who have replaced their turbos for more accurate testimony..
as to sound.. ugh bigger pipes for SHO's == droney blatty awfullness... but my exhaust noise preferences are narrow.
Quote from: geophb on August 31, 2018, 11:25:46 AM
Angles and bends are identical throughout the motor and manifold ;D
Dual 4" on a taurus?
Has anyone done an h pipe? Wondering because sound is different between h pipe,x pipe, and straights
Angles and bends through heads and manifolds yes, but turbo exhaust housings are different after as well as the downpipes and the bends they take.
As far as H pipe I don't think there is a time where an h pipe is going to out perform an x pipe. Might sound different, but that's kind of old school v8 stuff compared to today. He just wants dual 4" tips not full 4" dual straight piping. That just wouldn't fit under the car! Ha! I tried fitting 3" down in there and without sacrificing major clearance that isn't even possible. Best to just match the downpipe size to the exhaust piping size like he is doing at 2.5"
Quote from: TopherSho on August 31, 2018, 11:39:45 AM
Because of the bootsted nature, any level of widening as long as it is done right helps spin-up and response of the turbos. 4" MIGHT be a bit much with the stokc snails but i defeer to those who have replaced their turbos for more accurate testimony..
as to sound.. ugh bigger pipes for SHO's == droney blatty awfullness... but my exhaust noise preferences are narrow.
I plan to be one and done with the exhaust. It would be 2.5" turbo back, an xpipe, all stainless with the tips being quad 4" tips. I will have to cut the plastic to get those tips on there.
Thats my idea anyway! I already have 4" tips. The rear is so round and wide, I think those massive quad 4" tips in the pic above look fitting and I dare say would look even better on my SHO's rear end
There is good reason behind X pipes. Search Youtube. Plenty of "science"
https://www.dailymotion.com/video/x5s8nr8 (https://www.dailymotion.com/video/x5s8nr8)
Thank you guys for the input. I will be going with an xpipe!
Quote from: 802SHO on August 31, 2018, 03:56:03 PM
Thank you guys for the input. I will be going with an xpipe!
Thought I might add this. This is full 2.5" with an x pipe. So it's what you should expect it to look like in the end. This is with pie cuts though.
(https://i.imgur.com/QwUGHeC.jpg)
Jordan that looks perfect! All the uneccessary parts removed. Its simple and fully functional! I love it!
Thank you. My local guy does great work.
Yes he does! The shop I'm going to is really good too. I've had some work done before on a different vehicle and was really happy. I'll make sure to do a before and after as well as cold starts. And I'll be honest....I like some drone
For sure I am curious how it sounds. I am not too far off and I know I am loud, but it also is bassy at times from the resonators. Looking forward to hearing it!
Looks good Jordan, are there any sound clips that I overlooked? This thread is hitting home today, failed inspection for straight pipe on my truck yesterday...at the same place I've been taking it for years. You think he would have mentioned he would have to fail me this year BEFOREHAND!
Jesus Andrew you are an animal that thing is gonna loud lol. But on the other hand I'm curious to hear it. If you can fit the 4inch dual tips I think they would look great. I used to love the quad tip look on my Acura TL type s.
Quote from: MDesign Performance on January 15, 2015, 12:46:08 PM
I've tried this, it is loud and actually not that bad. The only bad thing is the drone you will have inside the cabin with the free-flowing system.
If you were interested in a custom setup I would do straight pipes from the down-pipe back and use some a high-flow resonator and chambered mufflers to kill drone. Kind of like the MDesign exhaust system that is currently for sale, though as it sits it is the same thing as practically a straight exhaust since all the components are high flowing. Throw on some chambered mufflers and I believe you could have something nice and unique.
M DESIGN: You are Really Alive... "Different Subject", You are getting slammed On Here,
Because you take orders, Mark as shipped with confirmation, and Then the Customer is Sitting Waiting for the CAI to arrive (way too Long). AND Then you do not respond to Emails about it.
I
like your product, am in your Corner, BUT you need to respond and Straiten this out For Good. YOU ARE loosing Customers and Confidence with this Group. :flamethrower:
Quote from: irondoor19 on September 01, 2018, 11:56:06 AM
M DESIGN: You are Really Alive... "Different Subject", You are getting slammed On Here,
Because you take orders, Mark as shipped with confirmation, and Then the Customer is Sitting Waiting for the CAI to arrive (way too Long). AND Then you do not respond to Emails about it.
I like your product, am in your Corner, BUT you need to respond and Straiten this out For Good. YOU ARE loosing Customers and Confidence with this Group. :flamethrower:
That post is from January 2015
Dam:
Did not have my glasses ON, I am going to send it to His Inbox
Quote from: irondoor19 on September 01, 2018, 12:22:58 PM
Dam:
Did not have my glasses ON, I am going to send it to His Inbox
SENT IT TO HIM, AND WILL SEND IT TO HIS EMAIL AS WELL,
I Want Everyone to Succeed, Does not take that Much...
Tim the Acura looked great man! Yes I'm going with the quad 4"! Talk about double D's on that B***** lol
Irondoor19 that flame throwing Emojie was sweet lolol
Quote from: Izzybird on September 01, 2018, 11:12:20 AM
Looks good Jordan, are there any sound clips that I overlooked? This thread is hitting home today, failed inspection for straight pipe on my truck yesterday...at the same place I've been taking it for years. You think he would have mentioned he would have to fail me this year BEFOREHAND!
For lack of better words...what a dink! So does it fail...visually only? If so that was a huge lame move on his part. After going there so much for so long you must have looked at him like, "C'mon man stop joking around!"
Quote from: 802SHO on September 01, 2018, 07:10:55 PM
Quote from: Izzybird on September 01, 2018, 11:12:20 AM
Looks good Jordan, are there any sound clips that I overlooked? This thread is hitting home today, failed inspection for straight pipe on my truck yesterday...at the same place I've been taking it for years. You think he would have mentioned he would have to fail me this year BEFOREHAND!
For lack of better words...what a dink! So does it fail...visually only? If so that was a huge lame move on his part. After going there so much for so long you must have looked at him like, "C'mon man stop joking around!"
I honestly asked him if he was serious, thinking he was messing with me. It's visual inspection only. I have a stock muffler that had some pieces fall out and modified to 4" in & out, so I'll buck up and throw it on. The law here clearly states you have to have a muffler, it's just rarely enforced. Depending on where you are of course. He was just doing his job, but could of just warned me to get straight or go on down the road.
I have a friend that turns a blind eye to my setup. No one is ever going to get down on the ground and look at your exhaust....I mean really. My muffler and catless downpipes fail already but its not in peoples faces. Taking a picture isnt required for inspection and theres no codes when he plugs in his DMV tool. Its all visual. I get its the law but....we all know how frivelous the laws are/can get.
Window tint is another law that I also disregard. How it even became a law is beyond me. I love how it changes magically from state to state...and law enforcement here also uses it. DEA love it and some marked and unmarked cruisers. At least here in VT they recently passed a new law...its still illegal on the front windows..but you can still pass an inspection with it on. Mixed messages there..it has never been strictly enforced is another..lol! Dumb laws
Picked the car up last night from the Exhaust Shop. It sounds awesome! Louder ✔ but honestly its quiter than my old Audi A6 4.2 custom exhaust I had. To me it has a deeper tone than a raspy one. Only complaint I have is they did not remove my 3rd 🐱. A bit dismayed really mostly bc they never once mentioned that they felt they legally could not remove it. Ive been very specific about removing 3rd cat and resonator...in conversation as well as emails. Only after it was done that I saw the 3rd cat still there that he said he couldn't legally remove it. So it's 2.5" stainless catless downpipes to 3rd cat😡 to 2.5 stainless custom xpipe and straight out stainless pipe all throughout to stainless quad 4" tips. Someone tell me the ugly 3rd 🐱 isnt restrictive ...clearly my goal was least restricitve
Sound clip coming soon. Wanted to clean it up but its not a detail contest...so probably just do the sound clip as it is.
Teaser Pic!!!
Quote from: 802SHO on September 13, 2018, 05:52:47 AM
Picked the car up last night from the Exhaust Shop. It sounds awesome! Louder ✔ but honestly its quiter than my old Audi A6 4.2 custom exhaust I had. To me it has a deeper tone than a raspy one. Only complaint I have is they did not remove my 3rd 🐱. A bit dismayed really mostly bc they never once mentioned that they felt they legally could not remove it. Ive been very specific about removing 3rd cat and resonator...in conversation as well as emails. Only after it was done that I saw the 3rd cat still there that he said he couldn't legally remove it. So it's 2.5" stainless catless downpipes to 3rd cat😡 to 2.5 stainless custom xpipe and straight out stainless pipe all throughout to stainless quad 4" tips. Someone tell me the ugly 3rd 🐱 isnt restrictive ...clearly my goal was least restricitve
Sound clip coming soon. Wanted to clean it up but its not a detail contest...so probably just do the sound clip as it is.
Teaser Pic!!!
You can cut the third cat fairly easily if you wanted to. Unbolt the exhaust and jam a piece of like rebar or a giant pry bar in there and it'll break up pretty easily. However I feel like that third cat is resonating it a hair so it will probably sound worse without it. However the third cat is 2.25" so you are going 2.5" to 2.25" to 2.5" again
I'm really not happy with the way the shop owner handled the 3rd cat. He literally never said anything about NOT being able to do it...or NOT feeling comfortable to do it. It was done and he said..I took pics check this out. I'm looking at the pics and I asked him...is that the 3rd cat? Yes I cant legally remove that, federal law. ???????????? Really? Yes. Its not restrictive, if you did a before and adtwr dyno it wouldnt be anything. If it came in and it never had one, well thats different.
??????? Uhm if you would have communicated that I would have made sure it didnt. I told him everything I wanted to do to the exhaust weeks in advance. Never said a word about the cat.
After the money spent right now I'm done with it for now. I'll have my friend who did my original muffler deletes cut it out and weld some straight 2.5" stainless in its place sometime soon. I'm happy with everything they did..its what they didnt do that I'm very displeased about and bc there was no communication.
Cold Start and some revs
https://youtu.be/IVDPcotk4dI
Quote from: Jordan on August 31, 2018, 06:00:48 PM
Quote from: 802SHO on August 31, 2018, 03:56:03 PM
Thank you guys for the input. I will be going with an xpipe!
Thought I might add this. This is full 2.5" with an x pipe. So it's what you should expect it to look like in the end. This is with pie cuts though.
(https://i.imgur.com/QwUGHeC.jpg)
Love that setup, I'll be going with this x pipe! Did you mount the x pipe right where there he 3rd cat was or where the resonator was?
Also what mufflers are those ? MRT?
Quote from: 18SHO on January 24, 2019, 01:20:38 PM
Quote from: Jordan on August 31, 2018, 06:00:48 PM
Quote from: 802SHO on August 31, 2018, 03:56:03 PM
Thank you guys for the input. I will be going with an xpipe!
Thought I might add this. This is full 2.5" with an x pipe. So it's what you should expect it to look like in the end. This is with pie cuts though.
(https://i.imgur.com/QwUGHeC.jpg)
Love that setup, I'll be going with this x pipe! Did you mount the x pipe right where there he 3rd cat was or where the resonator was?
Also what mufflers are those ? MRT?
X pipe mounted basically where the third cat is and vibrant resonators
Quote from: Jordan on January 24, 2019, 01:30:38 PM
Quote from: 18SHO on January 24, 2019, 01:20:38 PM
Quote from: Jordan on August 31, 2018, 06:00:48 PM
Quote from: 802SHO on August 31, 2018, 03:56:03 PM
Thank you guys for the input. I will be going with an xpipe!
Thought I might add this. This is full 2.5" with an x pipe. So it's what you should expect it to look like in the end. This is with pie cuts though.
(https://i.imgur.com/QwUGHeC.jpg)
Love that setup, I'll be going with this x pipe! Did you mount the x pipe right where there he 3rd cat was or where the resonator was?
Also what mufflers are those ? MRT?
X pipe mounted basically where the third cat is and vibrant resonators
Very nice, any sound clips of the car? Gotta sound real good
https://youtu.be/8Ecvw57OIx0 here is this set up in action
Quote from: Jordan on January 24, 2019, 02:19:27 PM
https://youtu.be/8Ecvw57OIx0 here is this set up in action
You think if I have stock downpipes but setup past that like your running it's loud enough without any drone?
With the catted downpipes it'll be a little bit more muffled. Honestly I think it would sound good. My biggest complaint about going to catless downpipes is it made it more prone to some rasp.
Quote from: Jordan on January 24, 2019, 05:22:48 PM
With the catted downpipes it'll be a little bit more muffled. Honestly I think it would sound good. My biggest complaint about going to catless downpipes is it made it more prone to some rasp.
For drone I don't even consider it a problem. I've owned a car before with some serious drone...this is nothing. And I get some rasp but honestly not a whole lot of that either.
https://youtu.be/IVDPcotk4dI
Quote from: 802SHO on January 24, 2019, 05:28:15 PM
Quote from: Jordan on January 24, 2019, 05:22:48 PM
With the catted downpipes it'll be a little bit more muffled. Honestly I think it would sound good. My biggest complaint about going to catless downpipes is it made it more prone to some rasp.
For drone I don't even consider it a problem. I've owned a car before with some serious drone...this is nothing. And I get some rasp but honestly not a whole lot of that either.
https://youtu.be/IVDPcotk4dI
I drove 2 hours one way to the drag strip with open downpipes on the taurus. Never going to happen again. Learned my lesson
Quote from: Jordan on January 24, 2019, 05:38:47 PM
Quote from: 802SHO on January 24, 2019, 05:28:15 PM
Quote from: Jordan on January 24, 2019, 05:22:48 PM
With the catted downpipes it'll be a little bit more muffled. Honestly I think it would sound good. My biggest complaint about going to catless downpipes is it made it more prone to some rasp.
For drone I don't even consider it a problem. I've owned a car before with some serious drone...this is nothing. And I get some rasp but honestly not a whole lot of that either.
https://youtu.be/IVDPcotk4dI
I drove 2 hours one way to the drag strip with open downpipes on the taurus. Never going to happen again. Learned my lesson
I can only imagine how loud that was lol I'll take your word and not try that.
Quote from: 802SHO on January 24, 2019, 06:43:20 PM
Quote from: Jordan on January 24, 2019, 05:38:47 PM
Quote from: 802SHO on January 24, 2019, 05:28:15 PM
Quote from: Jordan on January 24, 2019, 05:22:48 PM
With the catted downpipes it'll be a little bit more muffled. Honestly I think it would sound good. My biggest complaint about going to catless downpipes is it made it more prone to some rasp.
For drone I don't even consider it a problem. I've owned a car before with some serious drone...this is nothing. And I get some rasp but honestly not a whole lot of that either.
https://youtu.be/IVDPcotk4dI
I drove 2 hours one way to the drag strip with open downpipes on the taurus. Never going to happen again. Learned my lesson
I can only imagine how loud that was lol I'll take your word and not try that.
Well the first two hours was very loud and I stuffed napkins in my ears. The two hours back I contemplated totalling out the SHO as that seemed like a good plan of action at the time LOL
Quote from: Jordan on January 24, 2019, 07:15:02 PM
Quote from: 802SHO on January 24, 2019, 06:43:20 PM
Quote from: Jordan on January 24, 2019, 05:38:47 PM
Quote from: 802SHO on January 24, 2019, 05:28:15 PM
Quote from: Jordan on January 24, 2019, 05:22:48 PM
With the catted downpipes it'll be a little bit more muffled. Honestly I think it would sound good. My biggest complaint about going to catless downpipes is it made it more prone to some rasp.
For drone I don't even consider it a problem. I've owned a car before with some serious drone...this is nothing. And I get some rasp but honestly not a whole lot of that either.
https://youtu.be/IVDPcotk4dI
I drove 2 hours one way to the drag strip with open downpipes on the taurus. Never going to happen again. Learned my lesson
I can only imagine how loud that was lol I'll take your word and not try that.
Well the first two hours was very loud and I stuffed napkins in my ears. The two hours back I contemplated totalling out the SHO as that seemed like a good plan of action at the time LOL
Napkins in your ears!! 🤣 hahaha Holy $$$$! That's loud! I'm glad you didn't swerve off the road buddy
What I get for trying to run a faster drag strip time LOL. Next time I will just pull it off at the strip bahaha