The Cardone Select Master Cylinder proved to be a great upgrade for my performance car's brake system .based on our own experience, the pedal feels firmer and more responsive, resulting in better stopping power. The installation was quick and easy with proper fit and function right out of the box. The only con we found was that it's slightly more expensive than other aftermarket options, but the quality and performance improvement is worth the extra cost. Overall, we highly recommend this product for anyone looking to upgrade their brake system..