I'm sure this could be physically accomplished, but there's more to this than simply fashioning the intercooler in place. I don't know the details for this particular car, but I can explain the principal that you need to understand.

There are fundamental differences in "souping up" a gas versus a diesel engine. With a gas engine, you must think of the engine as a pump. The gas and air are mixed together somehow at or before the intake port. The more air/fuel you can pump in, the more horsepower you pump out.

In a diesel engine, there's only one way to get more horsepower, and that is to inject more fuel. You can turn up the amount of fuel injected into the cylinders and make more power. Where the "pumping" comes in with a diesel is pumping in enough air. If you don't pump in enough air, combustion chamber temperatures increase and engine life is decreased. In the gas engine, you decrease combustion chamber temperature by increasing the amount of fuel. Most principals are opposite between these two engine types.

Now, to make use of the intercooler, which provides more and cooler air, you have to "turn up" the injection system somehow. If you're going to do this, you better know where to stop, or you will decrease engine life, possibly to a matter of minutes.

Good luck,