This inverted adapter is an essential add-on to any performance automotive brake system... Based on our own experience, installation was simple and straightforward. The adapter enhanced our brake performance by providing a smooth and easy transition of brake fluid to the calipers. The only con we have is that it would be great if the cost was a little lower since it's just a small component in a larger brake system. Overall the Allstar ALL50121 Straight Inverted Adapter is a must-have for any performance car owner looking to improve their braking abilities..