RULE #1 any time when turbo is replaced you must replace return and feeding line.and no you dont have to touch anything on the engine in order to remove and reinstall the line.you have to bend it a bit and that i s it

 

I should have been more clear, 3/8 socket,1 long extrension, swivel head, 17mm, WILL work. Ive done 5 turbo installs, belive me, it will.