The air scoop at the bottom of the cooler just tucks under the bumper so it is quite air tight there too, I will add a rubber strip between the two pieces to seal it up.

I can now have a carbon or ally air box made above the cooler to suck ' force cool air into the turbo air filter. I have found a carbon one at spoox that is designed to replace the 205 slam panel so I can adapt that probably.