The T8 is the most popular seat made by Tillett Racing Seats. The T8 was the first kart seat ever made using RTM. This system makes a strong fibreglass moulding with a uniform quality and thickness, the process also speeds up production, keeping the price of the T8 below that of the hand made models.

In addition to these benefits, the two smooth sides of the T8 keep a clean, professional image throughout the life of the seat.