1. Compbrake B4 4 Pots with 280x26 Rotors to fit 15" (CompBrake)
2. Willwood 4 Pots with 283x22 GTI6 Discs 15" (welly)
3. 406 V6 Brembo with GTI180 285x26 Discs 15" (ash)
4. 406 V6 Brembo with Xantia 288x28 Discs 15" (Welly)
5. AP BTCC 4 Pots with 295x26 Rotors 15" (VLR)
6. Fiat/Alfa Brembos with 305x28 406 V6 Discs 16" (tomtomtom)
7. AP 4 Pots with 305x28 406 V6 Discs 16" (rallyestyle)
8. Clio 197 Brembos with 305x28 406 V6 Discs 16"(rich_w)
9. Clio 197 Brembos with 310x28 Rotors 16" (ash)
10. 406 V6 Brembo with 310x28 Rotors 16" (ash)
11. 406 V6 Brembos with 330x28 Rotors 17" (ash)
12. Compbrake Pro7 Brembos with 330x32 Rotors 17" (ash)
If you know any more proven conversions, please feel free to add them...