I've been searching for an uprated radiator, to replace my leaking factory fitted radiator.

I can't find one anywhere! Does anyone know of one?

Currently running stage 2 and would like improved cooling, as I will soon be running a Twintercooler.

They're not widely available because they're not required. The Audi S3 runs the same rad as the Octavia and that has a bigger turbo. I run a larger turbo and my needle never shifts over 90c.

Just get a stock one.

Thanks for that bud. Will get one when I change to the S3 intercooler.