Tillett B6 Screamer Carbon Fibre/GRP FIA Approved Racing Seat XL Size - 47cm Rolled Edges OnTHE FIA APPROVED CAR SEAT MADE FOR COMPETITION CARS. The B6 Screamer is FIA approved for racing to 8855 1999. This model is one of the most compact, lightweight yet comfortable FIA homologated seats on the market. The ability of this seat can be used without covering and the carefully sculptured shape means that you can achieve a lower driving position than the competition. Its perfectly contoured shape gives excellent support, whilst at the same time