Tillett B6 XL Screamer Carbon/GRP Race Car SeatThe new B6 XL Screamer Carbon GRP is FIA approved to the 8855 1999 standard and replaces the popular B6F XL. This seat is a 30 mm wider version of the regular B6 Screamer. Importantly, the weight is now 20% lighter than the B6F as this seat uses a new moulding system which creates lighter seats with superior strength. The belt holes are now positioned higher for taller drivers. The rear of the seat has a new design which is more compact to avoid roll