I posted awhile ago on this issue with my NA but got no response, that this began when I put the DCAI's on with the 74mm TB. The problem seems to be getting a bit worse, so I'll do the reset also and see what happens. Always from idle, generally in first as it starts to move toward second, the flat spot hits, like it just went into a neutral mode, then I back off the accelerator and then appears to run normal.