I brought a g35x three months ago and for last couple week it's been squeaking. It sound like it's coming from the exhaust. Like there's a stick stuck in there that's dragging the ground. I took shop and they can't find anything. I hit 105k last week so I just did the spark plugs and oil change. Gonna clean tb Monday. Anyone know what it could be.

 

When does it squeak?
Over bumps? Driving fast or slow? Does it squeak more or less depending on speed? How are the brake pads? Coming from front or back?
It's pretty hard to diagnose a noise over the Internet without hearing it.

 

Your description of the noise does not make sense to me. A stick in the exhaust that sounds like its dragging? Is it a grinding noise or a rubbery squeaky noise (like when suspension parts are moving up and down like an old mattresses).

Hopefully your TB has been cleaned before because if its really dirty inside than the car is going to be PITA to relearn idle air vol... Wish I never cleaned them last week lol