I ordered this kit after hearing good things about Mishimoto. I installed it professionally due to a temporary job change so I miss my shop at home. Everything was installed well in the shop and tightened to specification. The problem is that banjo bolts slowly lose oil. I ordered a second set of banjo bolts just to have them do the same thing. So now I'm without a car and doubting the quality of Mishimoto parts. Oil leaks are not a problem, especially if you love your car.