When I got my GT3 seats with factory sliders I was also suprised at both the upright seating position and how high you were sitting. I got the BK brackets for factory GT3 seats that mount onto the sliding mechanism. Perfect, at least for me. They tilt the seat back more, which effectively gives you more headroom and lower the seating position about an inch as well. The BK brackets are not cheap, but made the seats work perfectly for me. Best of luck,
Ed
