[Krazeeun]

Try a complete EGR/EGR cooler delete from K2dieselperformance.com, not running hot soot-filled exhaust gases thru your motor will really help cool your EGT's.

Also, ditch the cat in the downpipe if you havent already done so

For starters...

 

[Krazeeun]

On the boost question, your stock turbo won't create enough boost to hurt you, so no worries there. However, the drive pressure on the turbo (engine back pressure :confused013: ) on trucks with hot tunes is the supposed culprit for a lot of headgasket failures at the moment...