[Christ]

Except under load, it may start knocking like crazy, due to the increased temp.

If you're going to go cooler-less, at least watch your IAT and EGT for awhile, to make sure that when you're pushing higher boost numbers that you're not getting too hot.

I suggested moving or getting a larger intercooler because typically, on a diesel, (at least from what I know, admittedly not alot.) you won't get any better economy using cold air vs. warm air.