I only removed my interior 5 weeks ago, and i still use the stock seats and seat belts. I know there's faster cars out there with cages etc, when we do hit the track, we are always in group 1 with the carrera cup cars and full built race cars. It just inspires me to make the DC5R go faster and continue to practice by getting as much track time as possible. The hi power racing guys did great times in there CRX with the CF doors, Boot lids etc. Just makes me want to go faster. After all, first one across the line is the winner.