do i have a boost leak?

[240o'clock]

Ok so i was driving my 240 around yesterday and i noticed that when i get passed 4000 rpm i start to hear a little whistling noise behind the turbo sound and it kind of feels like i have a boost leak. The car doesnt seem to have all the power i had before, im going to take it to J&R auto in el monte on monday and see whats up. If it is a boost leak is there a certain price range id be spending? And is it safe to drive the car while it has a boost leak? Thanks for taking the time to read and Merry Christmas

[WERDdabuilder]

probably some loose nuts where the turbo/mani meet. start the car and put your hand in that area to feel if there is air coming out from any of those areas and feel the nuts to see if they came loose. im sure its more of an exhaust leak if its that whistle.

[240o'clock]

Alright id prob have to check that out tommarow then

[murffy]

yeah just check around man..sounds like a boost leak...definetly not a reason to shell out some cash bro..good luck and i hope you can fix it on your own man.

[240o'clock]

Yep ive got an exhaust leak, Maybe a boost leak as well....Hopefully it doesnt cost alot to fix cuz im broke haha