OK, so we checked everything.


First thing we fond out was that it's transmission related. On the throttle it's MUCH stronger and as it comes on boost it becomes even stronger with g-force rasing. It's felt stronger to the back but in tunnel area. First idea was pop=shaft support bearing but it wasn't that (we changed it). Now last idea is gearbox mount. It is soft and vibration can also be felt on gearshifter. Maybe it's moving a bit too much and making pressure on prop shaft or something. I'ma currently working on getting new one....