TCI StreetFighter Transmissions are designed to withstand the rigors of street machines ranging anywhere from 400 to 675 horsepower with a non-supercharged system using pump gasoline depending on application. Equipped with a TCI manual/automatic valve body most units allow you to manually shift the vehicle into each gear change or by placing it in the drive position remain fully automatic. This gives you racetrack shifts and shaves time off your ETs. TCI 700R4 2004R and AOD StreetFighter Transmissions also feature a TCI Constant Pressure Valve Body to ensure that clutches and bands are applied firmly to eliminate slippage.