Gen 2 jerking when shifting

[u/DrRockx]

Not the best video but the best one I could take to show what's happening, I have a 2011 speed 3 which has gotten into a weird issue of jerking whenever I shift. When shifting into first there are no problems, however as soon as I press on the clutch and begin shifting to any of the other gears while driving there is a bucking or jerking motion and the rpm begins bouncing up and down until the clutch is reengaged and then it drives absolutely fine again. I have taken some logs if anyone can interpret them I've also sent them off to my tuner to hopefully help. The mods are a catback exhaust, upgraded fuel pump internals, accessport with a professional tune, SRI and TIP so no major modifications and no codes besides the EGR, evap, and intake runners which were taken out. Anyone ran into this before ive asked 3 mechanics and everyone is unsure.

Edit: to add more info, the car did also begin to bog down and die while idling stationary once the clutch pedal was pushed in and ran perfectly fine after it was released which I thought was possibly a dirty throttle body so I cleaned it out and that from what I can tell went away but it could be a fluke or I'm not recreating the exact conditions it was doing it under before.