Finally, a home for all you 524td oil burners out there.
you're out of my realm of knowledge unfortunately. Beyond knowing an intercooler would be a good idea, the specifics of which one and how to plumb it in is lost on me. I was actually thinking maybe if I could get an air to water cooler to sit where the stock crossover pipe is, that would be ideal. Ultimately I'd want it to look like it came from the factory rather than some plumber's nightmare.