Cooling Upgrade

[TwinTurboV8]

Hi all

So my RS6 resides in the GCC, where in the summer, outside temperatures hit 50+ Celsius(!!) I have installed an APR Stage 1 tune, and that is the only mod that I have made (apart from removing the front resonators in order to straight pipe this section). As the vehicle is now tuned, whilst also operating in extreme temperature conditions, what cooling upgrades can anyone recommend?

I am a little confused on whether I should simply go for a charge cooler and if this will be sufficient.

Many thanks