TL:DR - I always wrote off those silly gas pedal extensions as tools for old guys who couldn't figure out how to heel/toe. That or they were for waxers who wanted to dress up their interior - right after they got done air brushing a mural on the underside of their hood.  Once I made one to accommodate my brother in my own car I realized there's an actual verifiable performance advantage on track.   Pedal Placement The Corvette engineers did many things right when they scrapped the C4 for the completely redesigned C5 in 1997.  One thing they could have considered...