Question about allowed modifications:

Can I get a new seat and stay in D-Stock? I just made my new race numbers, and I don't want to have to make new ones


EDIT

By new seat, I probably mean a bucket seat. Prelude 5th Gen seats sit a little too high for me, especially during autoX. The helmet skyrockets out the sunroof and I can't really move my head much. I'm 6' 6"