check your bolts on the waste gate, that's what it sounds like actually.

__________________
2008 Black/Black GXP, purchased 7/23 right off the train.
Mod#1 blacked-out headlights
Mod#2 GMPP Intake -I like to hear my turbo.
Mod#3 Special Sauce
Mod#4 Solo Street Race
'97 Burb.
"07 Charger R/T, Mama's car
Race #1 Charger 0 /Sol 1