Sound tube mod...
hmmmm . . . I guess it is not a big deal, but --
If you take that foam plug out, the engine will be sucking unfiltered air in through the sound tube, won't it?
I guess it doesn't matter as long as you don't kick a big cloud of dust off your boots when you get in the car.
Maybe it will make it breathe better too, maybe 1 or 2 HP gain?
If you take that foam plug out, the engine will be sucking unfiltered air in through the sound tube, won't it?
I guess it doesn't matter as long as you don't kick a big cloud of dust off your boots when you get in the car.
Maybe it will make it breathe better too, maybe 1 or 2 HP gain?
Last edited by Bert; Apr 2, 2010 at 06:24 PM. Reason: typos
hmmmm . . . I guess it is not a big deal, but --
If you take that foam plug out, the engine will be sucking unfiltered air in through the sound tube, won't it?
I guess it doesnt' matter as long as you don't kick a big cloud of dust off your boots when you get in the car.
Maybe it will make it breath better too, maybe 1 or 2 HP gain?
If you take that foam plug out, the engine will be sucking unfiltered air in through the sound tube, won't it?
I guess it doesnt' matter as long as you don't kick a big cloud of dust off your boots when you get in the car.
Maybe it will make it breath better too, maybe 1 or 2 HP gain?

no no really they have this thing that plays music and howard stern.
I like to turn off the radio sometimes and listen to the hood music. mainly after its got a good cleaning on a satruday afternoon.
I like to turn off the radio sometimes and listen to the hood music. mainly after its got a good cleaning on a satruday afternoon.

Did like it until that though, only removed the piece in the engine bay. When I took the foam out of the cabin end it sounded to hollow to me.
Funny our 2007 GT/CS does not really need any silly little helper sound tube! When ever you floor the "CAL", it sounds as if the whole hood is going to just get sucked right down into the intake system. And that is with the windows up!! Love it! I know what you are thinking. Old school S-197.. Here comes the heat!
CalStang
CalStang
Funny our 2007 GT/CS does not really need any silly little helper sound tube! When ever you floor the "CAL", it sounds as if the whole hood is going to just get sucked right down into the intake system. And that is with the windows up!! Love it! I know what you are thinking. Old school S-197.. Here comes the heat!
CalStang
CalStang
Thanks for digging up this thread, I tried to do this on my '10 the other day but couldn't quite figure it out by memory . . . the detail pics will help next time I try it . . . intake noise takes me back to my old '70 Olds 442 4-bbl, gotta love it!
I took two video's - one with and one without. And honestly...I can't tell the difference between the two in terms of loudness when listening to the two clips, but while driving the car...it seems louder without the foam piece.
This was with the foam removed from the engine bay.
This was with the foam removed from the engine bay.
When mine comes in I figure I'll drive it for a week as-is, then try it for a week with the foam removed from the engine side of the tube. Decide which I like better. The consensus seems to be that removing the foam from the cabin side gives it a "hollow" sound.
Here's the clip...
http://www.youtube.com/watch?v=ol6Cj95ckDM
First half is without the foam piece, second half is with the foam piece. Not much of a difference if you ask me...
Again, this was just the foam in the engine bay. (not the firewall piece)
http://www.youtube.com/watch?v=ol6Cj95ckDM
First half is without the foam piece, second half is with the foam piece. Not much of a difference if you ask me...
Again, this was just the foam in the engine bay. (not the firewall piece)
Last edited by Norberd; Aug 19, 2011 at 08:42 AM.
So I decided to try this last night so that when I went to work the next morning, I can try to see if there was a difference. I was a little disappointed when I heard almost no difference. It wasn't until after I got home from work when I was able to really open it up hard. I had the car up to 6000 rpms and I could barely hear myself think. Man was it loud.
My girlfriend was with me and she said it was really loud. My car has about 1200 miles on it so it's pretty broken in. Do I recommend doing it? Sure, but you won't hear much difference unless you really get on it.
My girlfriend was with me and she said it was really loud. My car has about 1200 miles on it so it's pretty broken in. Do I recommend doing it? Sure, but you won't hear much difference unless you really get on it.
So I decided to try this last night so that when I went to work the next morning, I can try to see if there was a difference. I was a little disappointed when I heard almost no difference. It wasn't until after I got home from work when I was able to really open it up hard. I had the car up to 6000 rpms and I could barely hear myself think. Man was it loud.
My girlfriend was with me and she said it was really loud. My car has about 1200 miles on it so it's pretty broken in. Do I recommend doing it? Sure, but you won't hear much difference unless you really get on it.
My girlfriend was with me and she said it was really loud. My car has about 1200 miles on it so it's pretty broken in. Do I recommend doing it? Sure, but you won't hear much difference unless you really get on it.
Sorry, I forgot to mention that part. I only took out the engine bay one. I figured it would be too much if I took out both. I will take out the cabin one tomorrow or this weekend and let you guys know if there's a difference.



