exhaust noise

[whamby]

To start with I straight piped my truck and it sounds great up to around 2100 rpm. After that is has a high pitched whistling/fluttering sound. You can't hear it with the windows up but with them down it is very noticeable when pass someone, go by a building, or over an overpass. I added a walker full flow muffler to it today to see it it made any difference. It really quitened the truck up a lot but it did nothing for the whistling/fluttering sound. Do you think a resonator might change the pitch or something. People are following me around wondering why my truck is making such a shrill sound. I have removed the EZ and boost elbow just to see if there was any difference. The sound was still there and the power sucked so I pulled over on side of the highway and plugged the EZ back up immeadiately. Does anyone elses truck make this noise? Maybe just the way the 03 is.

 

[BaaRamU]

It's the Turbo kicking in

It's the Turbo kicking in...



BaaRamU

 

[GWDiesel]

MY 03 with 5" EX. with a muffler that has a baffle sounds the same,It's the Turbo.

you hearing bouncing off the side of things Ect. You should hear

it a little bit at idle also! GWD

 

[Fred Swanson]

Whooshing sound, very noticeable when going along a wall or something and getting into the throttle.

Not there with the new turbo, the exhaust pitch sounds down right mean now. No airy sound at all that I can hear.

 

[whamby]

thanks for the replies. Just wanted to make sure that was the way it was supposed to sound. I knew it was turbo noise I just wanted to make sure I haven't toasted something with my lead foot and EZ.

 

[bighammer]

I hear a sort of howl thru the stock system at certain speed/load conditions. I bet straight piped it would really be obnoxious.





So a different turbo makes it go away, eh? Hmmmm... .