i've heard the sport ka box is getreg and very strong, just wondered if it will fit my mk4 fiesta

 

Getrag are just one of Ford Group's tranmission product arms (the other being Tremec) - there's nothing in the name that means a gearbox is automatically stronger. AFAIK the sportka gearbox is just an IB5. It's only a 1.6 N/A engine so I doubt they would have wasted money on anything else!!