got a 05 anniversary with the new v2 engine replaced by nissan oil consumption problem. i got hks exhaust, random tech HFC, nismo cai, and aam plenum spacer installed but it doesn't feel right from mid to high rpm. do i need to get the ecu flashed?

 

Had mine replaced too. I think it needs to break in a little. There's has been a consistent observation of less vibration from mid to top.

If you had a flash before, I'd def get it again.