Definitive EcoBoost Exhaust Sound Thread
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Ramairetransam
New member
I am ordering my tips today , 4.5inch . What size is the stock pipe going into the muffler is it 2.25? I plan on doing the muffler delete at home with my brothers welding skills. Also does anyone know if a muffler delete can be done with just straight piping or do i need it to be bent a little?
Ramairetransam said:
I definitely had to deal with some bending to get the tip centered. I came into it thinking just a couple straight pipes, clamps, and pipe mating joints were all I needed. Then I cut my mufflers off and realized the angles were all over the place. Our mufflers aren't center-in, so it takes some work. We ended up doing it the right way and welded the pipes on, in two sections instead of just one, and then took a torch and heated up the main bend and pulled the whole straight pipe into place the extra inch that was needed to center my tips. Hangers will end up being another challenge you'll face. Be prepared for the worst lol. I luckily was working with an experienced old-school mechanic (my buddy's Dad), so he figured things out relatively easily after studying the whole thing for a bit and making changes on the fly. I can honestly say I wouldn't have got the job done without a welder, a torch, and his knowledge.
Ramairetransam
New member
grrr, i really hate to pay an exhaust shop . Maybe once i get the car up in the air my brother will have some words of wisdom
Is the exhaust the same on the flex as the sho/mks ?
Is the exhaust the same on the flex as the sho/mks ?
ineon provides his experience on an XSport:
http://www.ecoboostperformanceforum.com/index.php/topic,7652.msg115848.html#msg115848
http://youtu.be/8P8jtqcXBok
http://www.ecoboostperformanceforum.com/index.php/topic,7652.msg115848.html#msg115848
http://youtu.be/8P8jtqcXBok
Custome tig welded mandrel bent exhaust. Borla XR1, AR25 Aero Resonators, Single 3.5" Stainless all the way after the Y pipe. Exhaust is stupid deep in the lower RPMs. Listen with headphones.
Btw, anyone know the spacing on our 3 bolt flange from the downpipe? Getting a custom 3" made as well.
<iframe width="420" height="315"
src="https://youtu.be/xPF_ZJTiWfo">
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[url=http://youtu.be/xPF_ZJTiWfo]]http://youtu.be/xPF_ZJTiWfo]http://youtu.be/xPF_ZJTiWfo
Btw, anyone know the spacing on our 3 bolt flange from the downpipe? Getting a custom 3" made as well.
<iframe width="420" height="315"
src="https://youtu.be/xPF_ZJTiWfo">
</iframe>
[url=http://youtu.be/xPF_ZJTiWfo]]http://youtu.be/xPF_ZJTiWfo]http://youtu.be/xPF_ZJTiWfo
Definitely has that ecoboost sound still. But hard to capture the deepness of the exhaust from 1.5-3k. Up top is fairly quiet, probably due to the primary cats.
Yea I need to trim about 2 inches from the tip. Didnt notice it once it came off lift, had to leave right after. Going to the same fabricator for the DPs.
Then.. a tune.
Yea I need to trim about 2 inches from the tip. Didnt notice it once it came off lift, had to leave right after. Going to the same fabricator for the DPs.
Then.. a tune.
gtmorgan23
New member
I cannot make up my mind whether i want to do a muffler delete with new tips or just leave it completely stock until I go Corsa.
I am for sure going to add catted PPE downpipes at some point in the future before I spend the coin on a true catback.
I have a feeling PPE catted downpipes and a muffler delete might not sound that great.
I am for sure going to add catted PPE downpipes at some point in the future before I spend the coin on a true catback.
I have a feeling PPE catted downpipes and a muffler delete might not sound that great.
SHOdded said:
My single biggest gripe about this platform...I have yet to hear a "good" (obviously it's subjective) exhaust. Stock, my Flex has a nice throaty growl from the driver's seat. My dad's stock '16 F-150 has that awful tinny/rattly V6 noise.
Now I think you are absolutely right about the resonator. After years and years of exhausts and research, I think the single biggest mistake people make is with resonators. As much as most people will deny it, Ford engineers are really good at their job, and that resonator is there for a reason. And that reason is to even out the exhaust note and prevent drone, probably the two biggest complaints when people start messing with the exhaust.
Reminds me of another forum I was on; some kid decided he wanted a little more noise out of his ex-cop '16ish DoD Caprice. He said all was fine, until the car went into econ-mode (4 cylinder) and the drone was unbearable. He said he left everything stock (INCLUDING THE MUFFLERS) but ditched the huge resonator. Well, that resonator was big for a reason...it not only was working to combat the resonant frequency of the 8 cylinder mode, but ALSO the 4 cylinder mode, keep NVH down during all modes of driving.
I don't understand why turbos on these cars change the exhaust tone/type SO much. The Duratec, which the EcoBoost's are loosely based on, had really pretty nice exhaust notes if done right. My SVT Contour sounded REALLY good...I think it's going to take someone with a lot more knowledge about flow dynamics and resonance than me, to solve the EcoBoost exhaust high performance exhaust epidemic.
gtmorgan23
New member
they sound pretty darn good with a Corsa exhaust IMO. I just have a hard time paying 1500 bucks for some pipe and mufflers. but someday after DPs ill probably do it.
gtmorgan23 said:
Just muffler deletes, IMO, sound just about as "good" as the Corsa. And it's free.99
https://www.youtube.com/watch?v=w8v5Sw_lTX8