K24 Turbos used on X50s and GT2s are a direct replacement for the much smaller K16 Turbos used on standard 966TTs. The K24s upgrade and replace the K16 Turbos, they can handle over 500 crank horsepower. There is no sacrifice in low end horsepower or torque and a significant increase in mid-range and top-end performance. Asking $2,300. If interested please contact jalan3@cox.net