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Hello, if the leak is coming from the braided lines these are high pressure oil lines. You can buy replacement lines and the disconnect tool. The disconnect tool will allow you to disconnect the lines with ease so you can swap it out. If the leak is going all the way under the turbo and to the back of the passenger cylinder head. This is a fuel line and is also known to leak.
The fuel line will be just a steel line. If it's a steel braided line it is high pressure oil.