I was wondering when I order a cheetah 71.5 is it safe or even possible to command 1-2psi boost at idle to get a nice whistle while idling like the 03 fords? 08 Lmm btw

i dont know if this will work or not. you can change the vane position and get a pretty good sound out of it

with the stock vvt you can change vain position to get the lb7 rumble....dont see why you couldnt do the same thing with a cheetah, just adjust the vanes opposite from whatever they do to make the whistle stop

Any dangers to doing that?

Better talk to Brayden about that but it doesnt take much throttle to make her whistle very ear piercing like....

I find that the whistle starts at adout 1500rpm.
i think you will be moving idleing ar that rpm.
Tom