FTI Performance 700R4 level 3 transmissions feature FTI's performance calibrated valvebody and billet servo designed with the serious hot rod enthusiast in mind. They make an excellent choice for street cars making up to 600HP. The transmissions have: an HD Borg Warner sprag, high capacity clutch packs, 30 spline input shaft, pre-wired 4th gear lock-up, performance wide band, hardened sun shell, wide HD low roller clutch, very firm shifts, and each transmission comes with a new locking filler tube, dipstick and tv cable.