My car is making this noise between 1.5K - 2.5K RPM, it sounds like someone is driving beside me with their bass turned up, but as soon as I accelerate the vibration goes away. I noticed it when I was in second gear decelerating. I installed the SS clutch line and removed the restrictor, should I bring it to Mitsu??? Is anyone else hearing this???

 

Are you letting the RPM's drop too low?

 

The RPM was btw 1.5K - 2.5K when I heard the noise