My current coolant lines are connected to the factory tubes with hose clamps. I've always had coolant leak issues. I'd like to be able to connect directly to the cyl head with AN fittings. ATP's lines look like the bolt directly to the head, using a banjo fitting. Does anyone with an upgraded turbo know how to replace the factory coolant tubes with new fittings. I can only see the front tube, but it looks doesn't look like it's threaded. It looks like it's pressed into the head. I'm wondering if it requires tapping and threading.

Thanks.