I managed to make mine happen (with a 2.5" TurboTony DP) going very, very slowly with a short, angled, open-end wrench. Rotate it 1/12th of a turn, flip the wrench over and go another 1/12th of a turn, etc.

A general word of advice: Copper-bearing anti seize compound is our friend. I had to pull the head on my engine after the turbo had been on for a couple of years, and the bolts came out perfectly.

 

mine's a 12mm wrench for the DP nuts, and I have a 2.5" DP as well. I used the angled closed end of my wrench, it barely turns it, so it takes a while. Not too bad after I get it as tight as possible with my fingers though. That's the worst nut in the entire setup.

 

Thanks guys!!

I have to buy a couple of angled wrenches.

I used a thin film of red high temperature RTV between the turbo and the manifold as a gasket but no antiseize on the bolts.
Between the DP and the turbo I used metal leayered gasket.
Guess tomorrow I'll go back and remove them one at a time and use AZ.

I'll finish this freaking install some day

 

Great idea. That red RTV is good to 600* so you should be safe considering that's only 1000*f less than your exhaust temp.

 

I'm such a cool guy that even my exhaust is cool