Originally Posted by
Mike W
If you want nice threads for a permanent solution for the future the turbo will most likely have to have to come off. If like you say there is room for a nut on the back side, and you dont want to pay a lot to fix it and dont mind some Mickey Mouse, then just blow through it with a good sharp drill bit. Get a real cobalt drill bit from an industrial supply place and do it yourself. If you are going for a big turbo anyways in the not too distance future then maybe just rig it for now yourself cheap.
For all these reasons we usually recommend a short down pipe for stock turbos and big down pipes for upgraded turbos. With a long down pipe all these same bolts need to come back out and go back in successfully every time you change your clutch.
Mike W