Flywheel Clutch Issue

[64GunPilot]

When you say shifting is rough what do you mean specifically? What platform are you driving? Nice red 3rd Gen right?

Is it hard to put into gear? Grinding when you put it in gear? This is typically a failure of the pressure plate to disengage fully. This could be a hydraulic problem with your slave cylinder or master clutch cylinder. Have these been replaced recently? Are they bled properly? Or is your car cable driven clutch? If its a clutch cable type then maybe the cable needs adjusting to allow for a full disengagement of the pressure plate.

If the clutch is engaging strong and disengaging properly and the trans can be shifted through the gears without trouble then read on:

The clutch feels "grabby" or jerky when you let out on the pedal? This could be a couple of things. They might have done a simple dingleball resurface of your flywheel using something like this: https://www.amazon.com/Brush-Researc.../dp/B007SOW0WC . Maybe the new surface on the flywheel needs time to break in? They might not have hit it perfectly even as this would have been completely manual work with a drill. This is complete speculation as we have no idea what it looked like when it was removed and after it was reinstalled.

OR you might have a high performance stage3 clutch that grabs hard and feels jerky. This is just a characteristic of that type of clutch disc. You can change discs for a different feel, but this is obviously a lot of work.

Let us know more specifics of this "shifting roughness". How it feels specifically. Is it hard to shift, grinding, or clutch just feels weird?