As an automotive enthusiast, I was excited to install the new brake booster in my performance car. However, as a result of my tests, I determined that this product was a complete letdown. The braking power was weak and the pedal felt spongy. After only a few weeks of using it, the booster failed and caused a complete brake failure. The only pro was the easy installation. The con is that this product is dangerous and unreliable, not worth risking the safety of myself or others on the road.See full review