[blackecoboost]

When I start the truck up on a cold loring or afternoon and drive it past 2000 Rpm's then let it go it makes a different chirping sound then the bov. It's a brand new noise and this is my first turbo let alone twin turbo vehicle. Just wondering if anyone has any idea what it could be. My mods are the stage two twin filter oiled intake and Gibson cat back exhaust.

 

[sstroud]

Mine does the same thing, best I can tell it's the turbos spooling up and equalizing pressure. I think it's kinda cool, sounds like jet starting up lol.

 

[akmedic77]

Mine does too...