Decided to make a new thread for this specifically to take suggestions/comments/and show results concerning the exhaust.
Exhaust installed, MDesign Race Spec Prototype 1. Uses 2.5" piping which split to a single 3" piping then back to dual 2.5" at the rear, all stainless free-flow mufflers.
Pros: Increased power/quicker spool, better gas mileage, and now gurgles when you blip the throttle, sounds beautiful downshifting
Cons: Drone in 1800-2500RPM
Performance gains are confirmed via SCT X4 tuner. Under cruising and slight blipping of the throttle (1000-2000 RPM range) most of the time I am at -10 vacuum up to 0psi pre exhaust, post exhaust I now hit 2psi doing the same thing. Also I spin the tires effortlessly now, whether it's from a dig or roll on 1-2 and 2-3 shifts. While there is no rasp whatsoever and no drone in other RPM, the drone that is only noticeable in the 1800-2500 RPM range is a bit much to my liking therefore I'm willing to sacrifice some performance for sound reduction.
As of now I am contemplating using an oval shaped resonator up front which should eliminate drone considering the system is completely free-flowing, though am not sure if I want to stick with the original design (JimiJack's dual inlet/outlet resonator) or a wider and larger volume single in/out.
(http://i61.tinypic.com/2ut4zrl.jpg)
(http://i61.tinypic.com/clpgi.jpg)
Here is a quick video, rattling is the phone in it's make shift temporary cup holder not the exhaust!
(http://tinypic.com/r/qxkhsj/8)
I'm very excited about this exhaust, not so much with any drone. I will be paying close attention to this thread and how the drone issue progresses.
Quote from: FoMoCoSHO on May 17, 2014, 01:49:44 PM
I'm very excited about this exhaust, not so much with any drone. I will be paying close attention to this thread and how the drone issue progresses.
A more efficient resonator should kill the drone since it is only at the low end, cruising in 4th gear at 70MPH put me at 3-3500 RPM and the car had 0 drone, sounded as quiet as stock.
Yea you could go next size up in midmuffler, but itll come with internal x.
I had it, 14" version and had no rasp or drone with dynomax UltraFlo's.
Interesting sound, look forward to hear in person some day.
Quote from: SHODYOU on May 17, 2014, 02:48:52 PM
Yea you could go next size up in midmuffler, but itll come with internal x.
I had it, 14" version and had no rasp or drone with dynomax UltraFlo's.
There's actually a single 4" race style mid muffler instead of a dual in/out, I went ahead and ordered a larger oval shaped mid muffler that should definitely kill drone so we'll see what happens when that gets in.
Quote from: crash712us on May 17, 2014, 03:17:33 PM
Interesting sound, look forward to hear in person some day.
I'm only 10-15 min away from you in Dearborn, even closer when Im at LA Fitness in Allen Park. I'll be free all day tomorrow if you want to see what it sounds like, would love to compare it to your Corsa side by side! Sent you a PM.
Quick video from last night, going to need good speakers and the volume raised!
http://youtu.be/zwpsuyQnwFI (http://youtu.be/zwpsuyQnwFI)
Quote from: Spartn27 on May 18, 2014, 10:37:16 AM
Quick video from last night of very low revs, going to need good speakers and the volume raised!
http://youtu.be/zwpsuyQnwFI (http://youtu.be/zwpsuyQnwFI)
Sounds real nice got a bunch more rumble than the first design
Sounds good... I love the rumble too!... I'm interested to see if the change gets rid of the rasp you notice in the 1800-2500 (cruising range)....
Any dyno numbers? stock vs MDesign?
Quote from: BiGMaC on May 18, 2014, 02:17:08 PM
Sounds good... I love the rumble too!... I'm interested to see if the change gets rid of the rasp you notice in the 1800-2500 (cruising range)....
Any dyno numbers? stock vs MDesign?
It's not even rasp, from outside it sounds completely fine. The reason there is any drone from the cruising/engine load range is due to the 3" mid section. You gotta see it in person to respect the 3" piping difference, and that is causing resonance inside the cabin only.
That is the only "issue" as of now and I believe this new resonator modification will fix that. I put issue in parenthesis as I don't believe it really is one, this car pulls and breath much more easier and the power gains are there.
You kinda have to respect it for what it is, a race oriented catback system.
Keeping a close eye on this. If you can keep that sound while getting rid of the 1800-2500 drone, I'm sold.
that is the best exhaust note i've heard from any transverse EB application!
subpar exhaust note is just one of the few negatives that i thought was inevitable with the 3.5EB, although Ford did a much better job with it in the 2.0EB in the Focus ST.
once you get that drone/rasp fixed, I don't see how it can be improved much more.
Great job!
if you can provide a cost work up, including install, that would be great...
Quote from: DRII on May 18, 2014, 04:48:27 PM
that is the best exhaust note i've heard from any transverse EB application!
subpar exhaust note is just one of the few negatives that i thought was inevitable with the 3.5EB, although Ford did a much better job with it in the 2.0EB in the Focus ST.
once you get that drone/rasp fixed, I don't see how it can be improved much more.
Great job!
if you can provide a cost work up, including install, that would be great...
Thanks! I've been trying to get miles on it to get some carbon build up inside the race style mufflers to see if it improves after some break in and it is, though the drone/hum is still there. The exhaust note is also improving over time to a nice purr, it's really hard to explain and capture it on video due to the bass.
Regarding install this will bolt up to the factory downpipes, and install will include 3 or 4 clamps to piece the system up which is for shipping purposes. Anybody with a jack and basic tools should be able to get it done in a hour or so.
Thanks for your ideas and work. I had really not planned to buy an exhaust until you realised this dream. When you gonna talk about your intake?
Quote from: panther427 on May 18, 2014, 05:47:08 PM
Thanks for your ideas and work. I had really not planned to buy an exhaust until you realised this dream. When you gonna talk about your intake?
Just here to help out my fellow enthusiast. As far as the intake, I've got the carbon fiber coming in so maybe Sunday.
Ah yes, the dreaded drone. I've known it well for the last 10K miles. Passengers will sometimes ask why my Ex Sport is so loud *inside* the cabin :-[ I too am looking for a solution, I'm gonna make one more change to my system before I 'give up' and add a resonator.
Any updates on the exhaust system?
I'd love to see a resonator welded in this exhaust. Is that possible to get this made? Also what's the cost on this?
Sent using smoke signals.
Resonator has been welded in, I've been trying to log on miles on the system. It definitely has grown on me and I've gotten compliments or waved down in traffic multiple times with people alway asking questions of whats done to the car. I've decided to offer 2 versions of the exhaust, a Race and Street Spec. Only differences between the 2 will be the rear mufflers, Race Spec being free-flowing race type mufflers and Street Spec using free-flowing suitcase style mufflers for a quieter tone.
Price is going to be $799 + shipping and it will be a complete bolt on kit, anyone can PM me for info.
As a side note, the Dual Carbon Fiber Cold Air Intake is completed. With just a week of testing I am getting intake air temps of 87-92 on a 80 degree day, the faster you move the lower the temps due to the ram air design. It is a completely sealed intake system with complete hard pipes to each turbo, I have one ram air inlet at the bottom of the bumper and the second at the OEM intake duct opening. I plan on taking the car to the track to get some numbers though there is definitely a gain, pictures don't really do it any justice as it is hard to capture the carbon fiber though here is a sneak peak:
(http://i61.tinypic.com/28ateed.jpg)
(http://i62.tinypic.com/657tw5.jpg)
Nice... how about an exhaust vid with the resonator .
Sent from my SM-N900T using Tapatalk
Damn man the intake cans are a work of automotive art...... good job...
As for your exhaust...which style y pipe design are you going with?? ?
x2 on the automotive art :thumb: Nice control of the IAT.
Hope to see a video of the street vs race spec.
Sent using smoke signals.
Quote from: southtxSHO on June 03, 2014, 11:25:16 PM
Nice... how about an exhaust vid with the resonator .
Sent from my SM-N900T using Tapatalk
I'll try and get a vid up shortly!
Quote from: panther427 on June 03, 2014, 11:27:51 PM
Damn man the intake cans are a work of automotive art...... good job...
As for your exhaust...which style y pipe design are you going with?? ?
Thanks man! I'll be going with my original design as on the first page, it just has a more efficient 3" resonator attached to the 3" piping.
Quote from: SHOdded on June 04, 2014, 12:39:24 AM
x2 on the automotive art :thumb: Nice control of the IAT.
Thanks! Yea with normal driving I can hit ambient temperature, it was 67 this morning and I was hovering around 69 at a speed of 50 MPH. After some very good spirited driving and pulls I noticed it peeked at 129 and then settled down to very low 80's high 70's. Big test will be back to back pulls at the drag strip!
Quote from: wasinger3000 on June 04, 2014, 12:52:10 AM
Hope to see a video of the street vs race spec.
Sent using smoke signals.
I'll need to get the Race Spec exhaust off of my hands before having the Street Spec installed/created for vids as I have no place for storage. I would be willing to make a deal on the prototype so I can go ahead and do that if anyone is interested.
Since this is primarily about the exhaust, let me first state that I am interested. Esp if the drone disappears. For me- most likely the street setup as I plan to add in downpipes too, and I don't want the exhaust note too loud.
I am also very interested in the intake design, install, and of course test results.
Both products sound very promising and I appreciate your time for r&d as well as testing that you are conducting.
Can you make a video of the race with the engine warm? Just put a camera looking at the bumper and make a video of it at idle then give it a few revs. Then do the exact same thing with the street exhaust when you get it on. So it can Be compared that way.
Here's how I did one for my exhaust. Just an idea.
2013 Mustang GT/CS exhaust comparison: http://youtu.be/soaB2_DESac
Sent using smoke signals.
Any new updates on this exhaust? I was curious on resolving the drone at low rpms.
The Race Spec has settled in and there is very limited drone which is acceptable for the nature of the exhaust. The idea with the Race Spec was to put out power while sounding different and with the straight through free flowing design it does that.
The Street Spec is in the works and there should be more info within the next week which is when it is expected to be completed.
Thanks for the update. Can we get a sound clip of the Race Spec with the resonator?
I am interested in the street spec. Very curious to hear the two side by side. If the street spec is a tad quieter and has no drone or rattle I think you'll have a real winner.
Did this exhaust ever get released? I want one!!!!
SVTCruz think Mdesign still has it,you can try to send him a pm. Z
Quote from: ZSHO on January 05, 2016, 04:42:06 PM
SVTCruz think Mdesign still has it,you can try to send him a pm. Z
Thanks, will do!
In my opinion its very similar to the Police interceptor exhaust,probably might need to add a )Y-PIPE)before the cats along with some custom welding. Z https://levittownfordsupercenter.com/levittown-parts/#parts Btw you can purchase a Y-PIPE at Summitt or any performance retailer,hope this helps any if the exhaust is sold. Z Here's another link. https://levittownfordsupercenter.com/levittown-parts/#parts
If you have occasion to call/deal with Levittown, ask for Benny, he's da man over there in parts. Levittown is also a sponsor of the Edge forum.
Quote from: ZSHO on January 05, 2016, 05:52:32 PM
In my opinion its very similar to the Police interceptor exhaust,probably might need to add a )Y-PIPE)before the cats along with some custom welding. Z https://levittownfordsupercenter.com/levittown-parts/#parts Btw you can purchase a Y-PIPE at Summitt or any performance retailer,hope this helps any if the exhaust is sold. Z Here's another link. https://levittownfordsupercenter.com/levittown-parts/#parts
Interesting, I might go this route. Do you happen to know the diameter of the SEL piping?
Quote from: SVTCruz on January 05, 2016, 09:06:47 PM
Quote from: ZSHO on January 05, 2016, 05:52:32 PM
In my opinion its very similar to the Police interceptor exhaust,probably might need to add a )Y-PIPE)before the cats along with some custom welding. Z https://levittownfordsupercenter.com/levittown-parts/#parts Btw you can purchase a Y-PIPE at Summitt or any performance retailer,hope this helps any if the exhaust is sold. Z Here's another link. https://levittownfordsupercenter.com/levittown-parts/#parts
Interesting, I might go this route. Do you happen to know the diameter of the SEL piping?
It should be 2.25" if i'm not mistaken,you can always call and confirm with Benny because SHOdded and him are certainly da man. Z https://levittownfordsupercenter.com/levittown-parts/#parts
It should be 2.25" if i'm not mistaken,you can always call and confirm with Benny because SHOdded and him are certainly da man. Z https://levittownfordsupercenter.com/levittown-parts/#parts
[/quote]
Hmmmm, ok I'll keep this one in mind. I'm looking for a 3" pipe
Quote from: SVTCruz on January 05, 2016, 09:26:47 PM
It should be 2.25" if i'm not mistaken,you can always call and confirm with Benny because SHOdded and him are certainly da man. Z https://levittownfordsupercenter.com/levittown-parts/#parts
Hmmmm, ok I'll keep this one in mind. I'm looking for a 3" pipe
[/quote]I dont think a 3"exhaust is feasible,DP is a different story and best of luck. Z
I dont think a 3"exhaust is feasible,DP is a different story and best of luck. Z
[/quote]
Oh ok, I thought that's what MD was using on that prototype exhaust. What size is that?
Mdesign exhaust. After doing many different exhaust configurations first hand, including different sized piping, configuration of piping, and different brands of mufflers/resonators I've learned a lot in regards to the EcoBoost exhaust system when it comes to sound.
If you're going to modify your stock exhaust I highly suggest leaving the OEM mufflers intact and untouched as they do a great job in preventing dreaded cabin drone. The best thing you can do to the OEM exhaust is a modification of the "X-pipe" mod:
1. Cut out the resonator and third cat as you would per the x-pipe mod
2. Insert a 2.25" dual to 3" single y-pipe right after the flanges for the beginning of the OEM cutback
3. Use a 3" in-out Vibrant Ultra-Highflow SS Resonator
4. Come back into another 3" single to 2.25" dual y-pipe to mate to the rest of the factory exhaust system.
So you are essentially doing the X-pipe mod though a different configuration of it which will create a unique sound and kill any rasp.
Here is an example below to show the y-pipe to the single resonator though it did not go back into the OEM configuration and it is custom all the way through
Quote from: SVTCruz on January 05, 2016, 04:18:37 PM
Did this exhaust ever get released? I want one!!!!
I have it, and I'm looking to sell it. Only issue would be figuring out shipping.
Quote from: BBOX on January 06, 2016, 01:21:45 PM
Quote from: SVTCruz on January 05, 2016, 04:18:37 PM
Did this exhaust ever get released? I want one!!!!
I have it, and I'm looking to sell it. Only issue would be figuring out shipping.
I assume this is the race version, did the one you get have the xpipe or resonator added to reduce drone? I seem to remember you taking this off because it was too loud. I would be interested as well, and I'm close by. Only thing it that I don't want to deal with highway drone.
It is and I did. I ended up getting a really good deal on a SW exhaust so I swapped it out, I do think adding a resonator to the MDesign would fix it up nicely. Given that it's not really gonna be easy to ship and that I think most people would want to add a resonator or something to help with drone at least a bit, I'd price it pretty reasonably and it's definitely possible to use your car to haul it home if need be as I brought it home from Michigan in mine.