Originally Posted by NRGz

I had small leaks on the AN fittings the first time i installed my z1 oil cooler, as i didnt have much room to put a good wrench on. I went out and got a huge 1" wrench and all is good.

I feel like i have a small pinch leak on my lines now- wet spots on the under tray but no oil elsewhere leading to it.
I would recommend getting the sleeves as these lines DO run right by the stillen g3's if you have one and it can help with any rub.


I have had the bumper and tray off and had let the car run and revs to see where its leaking but no avail. I messaged z1 about just the lines and sleeve pricing weeks ago and havent gotten a reply.
Not bashing or anything, just my experience. Stillen had a good few weeks wait time when i tried to order them.



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