Clio 200 sports cat

Hi, I bought myself a clio 200 and it already had on a scorpion resonated cat back with a decat. It's way too loud on the motorway for me. I have decided to get a sports cat in the hope it tones the noise down a bit.
Iv not been under the car and only had it a few weeks. Will I have to get a scorpion sports cat or will other brands fit?
Was looking at ktec ones you see.

Thanks