Hi, I'm looking to increase the power in my 2.0 tfsi DTM, from what I have been told I can not replace the KO3 with a KO4, only able to upgrade my existing KO3. I have been told this by various turbo companys ie Turbo Technics, Turbo Dynamics etc with a cost of around £400-550 to upgrade my existing turbo, or around £700 to upgrade a new KO3. Does anybody know of anything different to this? I have also been looking into getting a remap, possibly REVO also getting Miltek exhaust, s3 injectors, and induction kit. Can anyone recommend where to get these from for a good price, also REVO suggested using the ITG induction kit. If anyone has any different ideas they would be welcomed and appreciated.