Original resonator put back in and now it sounds more muffled than previous stock.

[Gallatyn]

2019 Mustang Bullitt.

Tried an h pipe / resonator delete using stock mufflers to see if I like the tone better.

It was pretty good at low RPM (except for some drone) and a touch loud in Normal mode for me in the city.

Higher RPM sounded too loud (again, for me in the city - I don’t want THAT much attention) and it sounded way too raspy in that higher RPM range.

I just had my original resonator put back in and now it sounds much more muffled than when it was previously at stock. I have to put the exhaust in Track mode for it to get even close to Sport +. Sport + is what I liked in the city with the original resonator and muffler.

I’m guessing that using the clamps to put the resonator back in, or if any metal cement was used is somehow making this happen?

The installer did say that he welded something with the exhaust to keep it from moving - don’t know what it was so, I’ll have to ask him.

I don’t mind it being a bit louder than original stock (with active exhaust I have the options to make it louder with the different settings). However, I don’t want it as loud as the “h pipe with stock muffler” option - Normal mode was getting close to my original Track mode.

Should I do an axle back Borla S-Type with the stock resonator and see if that does it for me?
Or, do the cat back Borla Touring?
Or, do the Borla S-Type axle back with the h pipe (which MAY be too loud, I don’t know).

Your thoughts are appreciated.

Thanks.

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[steathv]

based on your preferences, stay stock.

 

[Gallatyn]

based on your preferences, stay stock.

Except, it's at stock right now and it doesn't sound nearly as lound as it used to when it was at original stock. I won't have any fun driving it if the sound is that much more lower than original stock. I have to do something.

 

[Unbridled5.0]

I think you're just used to the res delete. That's why it sounds so quiet right now.

That thing he welded to keep things from moving was most likely a small piece of hanger iron to join the pipes together. It's the best thing to do to keep the exhaust from moving and damaging the wiring for the AE valves where the harnesses come down by the tips. A known issue. You might be able to see the piece he welded from just looking under the back of the car (I can on mine). It'll be right after the resonator.

 

[Gallatyn]

I think you're just used to the res delete. That's why it sounds so quiet right now.

That thing he welded to keep things from moving was most likely a small piece of hanger iron to join the pipes together. It's the best thing to do to keep the exhaust from moving and damaging the wiring for the AE valves where the harnesses come down by the tips. A known issue. You might be able to see the piece he welded from just looking under the back of the car (I can on mine). It'll be right after the resonator.

I had wondered if I was just used to the louder sound after 5 days of the install. However, I instantly noticed that it did not sound the same as previous stock. I had a tune on it and thought that maybe that was it. I put the original tune back on the Bullitt and it was definitely not the same as before. So much more quiet and a bit of a different tone. It is really *that* different. I'm thinking it has to be something with the clamps or perhaps some metal cement. Something is muffling the sound more than normal. I do appreciate your reply, though.

 

[Unbridled5.0]

I had wondered if I was just used to the louder sound after 5 days of the install. However, I instantly noticed that it did not sound the same as previous stock. I had a tune on it and thought that maybe that was it. I put the original tune back on the Bullitt and it was definitely not the same as before. So much more quiet and a bit of a different tone. It is really *that* different. I'm thinking it has to be something with the clamps or perhaps some metal cement. Something is muffling the sound more than normal. I do appreciate your reply, though.

No problem. Any reputable exhaust shop isn't using metal cement though lol. If all the same stock parts are back on the car, I can't see many reasons the sound would be different. If you want the best exhaust shop in dfw, go to Miller Muffler in Lewisville. Good luck

 

[Gallatyn]

No problem. Any reputable exhaust shop isn't using metal cement though lol. If all the same stock parts are back on the car, I can't see many reasons the sound would be different. If you want the best exhaust shop in dfw, go to Miller Muffler in Lewisville. Good luck

Thanks for the tip. I'll put them in my notes.

 

[Gallatyn]

So, I talked to Miller Muffler in Lewisville and I'm going to try a Borla resonator/h pipe first (instead of shelling out close to 3K for a catback system). I think they may get to it sometime this Friday.

Also, I've just now been getting the "Exhaust Mode Selection Not Available" error which disables my Active Exhaust. Apparently, it's a known issue that is common when getting resonator deletes or other exhaust work. The wiring harness for the passenger side AE actuator is stupid close to a pinch weld. If the pipes aren't cut short enough, then it pushes the wiring harness right against the pinch weld and rubs on the wiring harness enough to expose the wires and cause a short.
This seems to be the case with me. I'm pretty sure Miller Muffler will be able to come up with a solution to that.

 

[jpjr501]

Do you have headers? That's where I'd spend the money because it'll give a really nice gain plus it'll turn the pitch of the exhaust up.

So I had a really obnoxious exhaust system on my car, Long tubes, no cats, MBRP resonator delete and MBRP race cat back. It was so loud it would blow the pictures of my garage walls.

I now have the long tubes, no cats, stock resonator, stock catback and I love it. Car made close to 800hp at the wheels. There are no power gains in the resonator and catback area, it's only sound.

If you want to hear my car, here is a cold start short and wide open throttle short.

 

[EFI]

It's probably in your head. There's no explanation that the same exact part would provide different results. You just forgot how quiet it was stock.

If you want a bit more volume and tone but without the rasp of a resonator delete, get the Magnaflow Tru-X resonator, it's a direct bolt on.

At idle and light cruise, it's quieter than stock which is nice. At part throttle it's a bit louder and deeper, and at WOT it screams compared to stock but has 0 rasp unlike the h-pipe.

 

[NightmareMoon]

Hold up. What did the exhaust place weld so it would stop moving around? That seems like an important detail...

If it sounds weird, I'd go ask the recent installer if they can think of anything which might have caused that.

Also, if you're having wiring trouble with your active exhaust... lets solve that first before we draw any conclusions.

 

[Gallatyn]

It's probably in your head. There's no explanation that the same exact part would provide different results. You just forgot how quiet it was stock.

If you want a bit more volume and tone but without the rasp of a resonator delete, get the Magnaflow Tru-X resonator, it's a direct bolt on.

At idle and light cruise, it's quieter than stock which is nice. At part throttle it's a bit louder and deeper, and at WOT it screams compared to stock but has 0 rasp unlike the h-pipe.

I keep thinking that it has to be in my head because the same exact part was put back on it. But I swear it still sounds not as loud as previously stock. It has to be the same, though.

 

[Gallatyn]

Hold up. What did the exhaust place weld so it would stop moving around? That seems like an important detail...

If it sounds weird, I'd go ask the recent installer if they can think of anything which might have caused that.

Also, if you're having wiring trouble with your active exhaust... lets solve that first before we draw any conclusions.

I'm not sure what exactly what and where the new weld is. I think (I'd have to verify) that it's common to have this weld done to keep the mufflers relatively still. I need to check that, though.

 

[Gallatyn]

Do you have headers? That's where I'd spend the money because it'll give a really nice gain plus it'll turn the pitch of the exhaust up.

So I had a really obnoxious exhaust system on my car, Long tubes, no cats, MBRP resonator delete and MBRP race cat back. It was so loud it would blow the pictures of my garage walls.

I now have the long tubes, no cats, stock resonator, stock catback and I love it. Car made close to 800hp at the wheels. There are no power gains in the resonator and catback area, it's only sound.

If you want to hear my car, here is a cold start short and wide open throttle short.

I don't have headers. Holding off on that because I hear it can make things REALLY loud.

 

[Gallatyn]

Update - Here's what I'm doing:
I had the Borla resonated h-pipe installed with the stock AE mufflers. It sounded better but...
it still didn't give me the volume that I *think* it used to have stock (because my brain won't let me think otherwise for some reason).
So, I'm getting the Borla S-Type axle back AE mufflers installed (hopefully this Tuesday). I know the tone will be different than stock but I'm ok with that because I like the tone from the Borla setup also. I know it will be louder and I think I'll be fine with it.

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