boostorbust

My tranny makes a noise (sounds like friction not very loud) when it gets to about 2500 RPMs in 1st gear then stops when you shift to 2nd then again in 3rd then stops. Also when i down shift. Needed a new clutch so i replaced it with a CC stage 4 and CC flywheel new pilot/throwout bearings and i was sure it was the throwout bearing but it is still doing it. No grinds or popouts shifts perfect. And i made sure i lubed everything up before re assembly. Also it makes a slight noise at idle with my foot off the pedal then when i push the pedal down it goes away. I have no clue what it is any help would be greatly appreciated