Exhaust Sound After Long Tubes
06-21-2021, 01:32 PM
#11
TECH Veteran
Jesus I could barely even tell the truck was on lmfao
The following users liked this post:
A4edwin (07-21-2021)
06-22-2021, 02:59 PM
#13
06-22-2021, 04:44 PM
#14
Hello,
Recently finished up cams/heads/headers on a 2003 2500HD with the 6.0. Thanks to everyone who helped with advice, etc.
The exhaust has a strange kind of higher pitched sound to it that almost sounds like an exhaust leak. Here is a video of it: https://youtu.be/TGX7ujBFPNQ
I can't tell if that's just the way it's supposed to sound, or if there's something wrong.
There is a low tone to it, from the muffler, but this higher pitched almost like a ping sound. It's definitely not coming from the engine compartment - I can say that much because when I had leaking manifolds the sound was definitely from inside the engine bay, this seems to be under the car.
Any ideas?
Thanks!!
Recently finished up cams/heads/headers on a 2003 2500HD with the 6.0. Thanks to everyone who helped with advice, etc.
The exhaust has a strange kind of higher pitched sound to it that almost sounds like an exhaust leak. Here is a video of it: https://youtu.be/TGX7ujBFPNQ
I can't tell if that's just the way it's supposed to sound, or if there's something wrong.
There is a low tone to it, from the muffler, but this higher pitched almost like a ping sound. It's definitely not coming from the engine compartment - I can say that much because when I had leaking manifolds the sound was definitely from inside the engine bay, this seems to be under the car.
Any ideas?
Thanks!!
06-22-2021, 07:03 PM
#15
@TXsilverado - no I don't have it anymore, exhaust shop kept it. I'm going back to exhaust shop tomorrow to get it quieter. I'm thinking we'll add another muffler or at the very least a resonator. There's got to be a way to quiet it down without losing performance. For what it's worth, I've done a few thousand miles with the aftermarket muffler drone - it wasn't that bad. I struggled more with my bluetooth FM transmitter as I went through cities.
@68Formula Until yesterday I thought it was a 3.000" but I took it to a shop and they said it was a 3.5 or a 3.250 - I didn't believe them until I really looked at it, and sure enough it's larger.
I've accepted the tinny sound of the headers as just being a byproduct of cheap headers - lesson learned. I may look at wrapping them to reduce sound. Hopefully whatever is done to quiet it down reduces some of that sound as well.
@68Formula Until yesterday I thought it was a 3.000" but I took it to a shop and they said it was a 3.5 or a 3.250 - I didn't believe them until I really looked at it, and sure enough it's larger.
I've accepted the tinny sound of the headers as just being a byproduct of cheap headers - lesson learned. I may look at wrapping them to reduce sound. Hopefully whatever is done to quiet it down reduces some of that sound as well.
06-22-2021, 08:13 PM
#16
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colorado2500hd (06-22-2021)
06-22-2021, 08:44 PM
#17
100% Redneck
Get the Vibrant Resonator they are so purdee 
I'd get the largest & longest one I could fit or maybe one of their small race mufflers along with your existing muffler(s)
Two resonators lowered the noise just enough after my Magnaflows were fully broken in (gotten louder with mileage).
I'd get the largest & longest one I could fit or maybe one of their small race mufflers along with your existing muffler(s)
Two resonators lowered the noise just enough after my Magnaflows were fully broken in (gotten louder with mileage).
The following 2 users liked this post by RedXray:
colorado2500hd (06-22-2021),
dantheman1540 (06-22-2021)
06-23-2021, 03:19 PM
#18
@RedXray it looks like your resonators are before the mufflers, is that right?
The exhaust shop I’m using said they can’t put resonators in front of the mufflers.
Just got a big one put on basically at the end of the tail pipe, helps a bit with the sound but didn’t quiet it down much
The exhaust shop I’m using said they can’t put resonators in front of the mufflers.
Just got a big one put on basically at the end of the tail pipe, helps a bit with the sound but didn’t quiet it down much
06-23-2021, 05:37 PM
#19
Seen OEMs run them before the muffler, after the muffler, and even both. Not sure what the advantage and disadvantages are. Most trucks seem to be after the muffler.
06-24-2021, 09:51 PM
#20
100% Redneck
@RedXray it looks like your resonators are before the mufflers, is that right?
The exhaust shop I’m using said they can’t put resonators in front of the mufflers.
Just got a big one put on basically at the end of the tail pipe, helps a bit with the sound but didn’t quiet it down much
The exhaust shop I’m using said they can’t put resonators in front of the mufflers.
Just got a big one put on basically at the end of the tail pipe, helps a bit with the sound but didn’t quiet it down much
