2024 Expedition Timberline Aftermarket Exhaust ?

[Silver-Bullet-Bus]

A competent exhaust shop could make the Borla work/fit.

However, concerning performance mods, this is the worst bang for the buck, of anything.

For 2 grand, you could get an intercooler, a tuner, & some good MPT tunes, and probably net at least 75 HP.


That exhaust won’t get you much if any real world HP, at all. Just my real world 2 cents.

The Borla Lincoln Navigator set up is only for the short wheel base, and additional is advertised as 2-1/2” however, the 2018 & up Navigator pipes are 2-3/4” OD, with 2-5/8” ID, so to me, the Borla would have the distinct possibility to potentially flow less, because the pipes are smaller, however, it would obviously be louder.

However, to each their own, on your individual taste for exhaust volume & drone—but I’ve had my fill, and we have to keep the wife happy, and also when you tow all day, drone becomes very intolerable. Best to you!!

 

[Silver-Bullet-Bus]

Hi Guys, New to Expedition. Does anyone know of the best aftermarket exhaust kit to install on my new Timberline for performance purposes ?
My factory exhaust is definitely not up to my standards. Possibly down pipe and all the way out ? or just a cat back system with large OD pipes ?
Who are the experts to talk with about Expedition exhaust ???

I hate to tell you, but your new Timberline exhaust flows really well, and the bola is slightly smaller diameter. I might make more noise, although, if you tow, you might not actually enjoy more noise after many hours towing.

 

[Silver-Bullet-Bus]

SPD I don't believe has a cat back, they have the downpipes and turbo adapters which I have and love. Please search for some of my posts though, once you break into this exhaust, I'll warn you, the truck will never be the same. I've tried half a dozen mufflers and even more resonator and muffler combinations to try and quiet this thing down or reduce drone. My first two were so terrible that people hated being in my rig. right now i'm running a combination of SPD stage 2 resonator, SPD mini resonator in the rear, and my 5th muffler (which i can't remember who it is right now, should be in one of my other posts). I've tried sound deadening material on the undercarriage, I've tried exhaust wraps, blankets, etc. If i had it to do again, I probably would have done just the downpipes and left the stock cat back, but I think part of the issue is the downpipes increase flow and do NOT reduce sound as much, which causes the whole system to be louder. I also think that increased flow (and per my exhaust shop) would have caused premature failure of the factory muffler, which many on here have without high flow downpipes/cats.

Just a word of caution.

I feel your pain—been there. However, after dealing with the noise & drone (and embarrassment), for three months, the Lincoln duals, from my aftermarket downpipes all the way to the rear, was the best compromise for me.

 

[mdecillis]

I feel your pain—been there. However, after dealing with the noise & drone (and embarrassment), for three months, the Lincoln duals, from my aftermarket downpipes all the way to the rear, was the best compromise for me.

Would love to hear how it sounds!

 

[Silver-Bullet-Bus]

Would love to hear how it sounds!

It’s a lot more comfortable inside, you can actually hear the turbos & bov nicely now.
Sounds good around 4k when your really getting after it.
…I had to do it, because I couldn’t deal with the drone anymore, especially, when we were towing.

 

[5280tunage]

Funny thing, I was just with a friend in Vegas that has a new Tundra, he did an exhaust and funny enough it sounds as bad as these do with an aftermarket. It seems these dual turbo v6's either need a $5k exhaust to sound good or just stay stock. Anywhere in between they get grumpy.

I too am pretty tired of the sound in the cabin with my aftermarket but I've tried over three different setups and I'm kind of done wasting money. The way things are going on these i'm not sure if i'll have it long enough now to make it worth dumping more money into.

I am curious though, what makes say the Lincoln muffler do better than a lot of the aftermarket ones. For one, there are plenty of reports (more so the single expy exhaust/muffler) of these stock ones blowing their wads. But given how much I've spent on my exhuast over the years, would it be worth just buying the muffler assembly and having my exhaust guy fashion a single to dual section for the inlet and dual to single for the outlet? What about the giant stock resonator in the back, is that what makes the difference? Hard to teill. I'm running two resonators today, a big one in the center and a smaller one at the rear. I just can't stomach dropping another $2500 to $3k on stock parts.

 

[Silver-Bullet-Bus]

I had a few goals and criteria in mind, and here they are:
1. Flow enough, for the power level I am at (800 Crank), without boost lag caused from a high back pressure muffler (like the factory expedition single in/out original muffler)—that stock expy single in/out muffler is okay for stage 3 turbos, but only so much beyond that.

2. Good boost response/no turbo lag

3. Be as quiet as possible while highway cruising and especially towing & general driving around town (I’m too old to want to hear noise & drone on an all day drive)

Think of what I did as a Lincoln exhaust with a high flow downpipe with high flow/legit cats. (GESI, G-Sport)

It’s pretty quiet until you really get on it, & then it makes a some nice noise, but not in the bad uncomfortable frequencies, and no drone anywhere, and the boost response is the best of anything I have tried.

How do I attach some videos ‍

 

[Silver-Bullet-Bus]

I had a few goals and criteria in mind, and here they are:
1. Flow enough, for the power level I am at (800 Crank), without boost lag caused from a high back pressure muffler (like the factory expedition single in/out original muffler)—that stock expy single in/out muffler is okay for stage 3 turbos, but only so much beyond that.

2. Good boost response/no turbo lag

3. Be as quiet as possible while highway cruising and especially towing & general driving around town (I’m too old to want to hear noise & drone on an all day drive)

Think of what I did as a Lincoln exhaust with a high flow downpipe with high flow/legit cats. (GESI, G-Sport)

It’s pretty quiet until you really get on it, & then it makes a sime noise, but not in thebad uncomfortablefrequencies, and no drone anywhere, and the boost response is the best of anything I have tried.

How do I attach some videos ?

 

[Silver-Bullet-Bus]

Funny thing, I was just with a friend in Vegas that has a new Tundra, he did an exhaust and funny enough it sounds as bad as these do with an aftermarket. It seems these dual turbo v6's either need a $5k exhaust to sound good or just stay stock. Anywhere in between they get grumpy.

I too am pretty tired of the sound in the cabin with my aftermarket but I've tried over three different setups and I'm kind of done wasting money. The way things are going on these i'm not sure if i'll have it long enough now to make it worth dumping more money into.

I am curious though, what makes say the Lincoln muffler do better than a lot of the aftermarket ones. For one, there are plenty of reports (more so the single expy exhaust/muffler) of these stock ones blowing their wads. But given how much I've spent on my exhuast over the years, would it be worth just buying the muffler assembly and having my exhaust guy fashion a single to dual section for the inlet and dual to single for the outlet? What about the giant stock resonator in the back, is that what makes the difference? Hard to teill. I'm running two resonators today, a big one in the center and a smaller one at the rear. I just can't stomach dropping another $2500 to $3k on stock parts.

Well, the duals are quieter, (& it is duals from the downpipes, all the way to the back) because it’s easier to control the sound in two small pipes, than one big pipe, especially, the bad unwanted frequency range of sound.

Additionally, it’s because Ford spent a lot of money designing that Navigator muffler, and from my initial use, it flow better than anything if tried, and it’s quieter than anything I’ve tried. Think of a navigator, with high flow downpipes.

This is how the new expeditions are set up also.

Yes, I blew out a few expedition muffler too, the middle one & the tailpipe resonator too.

Junkyard baby—that’s where I got all the navigator parts to try!

$120.00 for the two front pipes from the downpipes, to the dual center muffler.

$350.00 for the center duals with uncut pipes.

$150.00 for the tailpipe section

…& custom fab install shop his fee to weld in to the downpipes & install it all (the downpipes had to be removed for welding & fitting)

Really happy I went this route after trying several different thing.

 

[Silver-Bullet-Bus]

See pictures: Here is why you original, single-in/single-out expedition muffler, blows up internally, and probably why they are now using a more Lincoln Navigator style muffler on the new expeditions.

 

[5280tunage]

So then here's a question. When I look at the Ford parts catalogs, I see two very different things, both for in this case a 2019 Navigator.

I see for one, a muffler assembly that in the parts catalog looks like the dual pipe setup - part number jl7z5230a.

However, I also see under the same vehicle a diagram that shows muffler part number - jl1z5230e

5230e is less than half the price of "a". the thing is, the diagram almost makes it look like a single inlet and single outlet. The Navi didn't have a single pipe that i'm aware of. Is it just a diagram issue? Is the "e" part number just the muffler instead of the "a" part number which includes some inlet and outlet pipe? Or is the "e" part number an example of the Navi muffler made for the Expy?

 

[5280tunage]

See pictures: Here is why you original, single-in/single-out expedition muffler, blows up internally, and probably why they are now using a more Lincoln Navigator style muffler on the new expeditions.

this is interesting but what's the Navi muffler look like in retrospect? I also don't see any packing material in there so is this from a "blown" muffler?

 

[Silver-Bullet-Bus]

Don’t quote me, but I think in 2018, the navigator might have had duals underneath & a single tailpipe/option. The critical thing is you need an navigator “L” center section & navigator “L” rear section if you have an expy Max.

I’ll post some part numbers that worked on my max, and you could also look at the new part numbers from the new expy’s.

 

[Silver-Bullet-Bus]

This is the tailpipe rear section:

 

[Silver-Bullet-Bus]

This is the front/center muffler with the over axle pipes attached, that I used.

From my research, the heat shield parts numbers were the same from Lincoln to Ford, which was my big clue that this would work out.

 

[Silver-Bullet-Bus]

this is interesting but what's the Navi muffler look like in retrospect? I also don't see any packing material in there so is this from a "blown" muffler?

The packing material everyone including me has experienced, comes from the tailpipe resonator, not the middle main muffler. …but I blew apart the welds in the big middle muffler, and then tge internal plates were rattling around, in the big restrictive muffler.

 

[5280tunage]

Don’t quote me, but I think in 2018, the navigator might have had duals underneath & a single tailpipe/option. The critical thing is you need an navigator “L” center section & navigator “L” rear section if you have an expy Max.

I’ll post some part numbers that worked on my max, and you could also look at the new part numbers from the new expy’s.

thanks, mine is a standard chassis, not a max, i'll look at the differences but I'm considering a trip to my exhaust guy to see if he can do the single to dual, dual to single conversions easily.

 

[Silver-Bullet-Bus]

The packing material everyone including me has experienced, comes from the tailpipe resonator, not the middle main muffler. …but I blew apart the welds in the big middle muffler, and then tge internal plates were rattling around, in the big restrictive muffler.

I wonder how many million dollars $$ ford spent designing this Lincoln muffler?

It’s everything they told me a muffler Could Not be: good flowing & quiet!

It’s a free flowing,
no packing,
reverse flow on one tube,
multi-hemholtz-chambered & valved on the exit pipes!

Quite a marvel of engineering.

Let me know if you want to see more photos of it.

 

[5280tunage]

I just want to better understand the difference between this and the expy muffler, it's far harder to convert the expy single 3" design to a dual 2-5/8" design or whatever diameter it is. It also seems insane that no other aftermarket muffler can reduce drone and in cabin noise like these can, i've tried many.

 

[slow space]

Just an update . After careful thought and discussion with a performance muffler shop, I decided to only replace stock muffler with a magnaflow drop in. The sound naturally increased as I was told by the others on this forum, BUT I stopped the hesitation upon throttle increase. Now, the Timberline can breathe ! I left all other piping stock. Happy with the upgrade .No more hesitation !