Review on Moroso 65425 Holley Secondary Vacuum by Isaiah Boys

This vacuum system is a game changer for any automotive enthusiast looking to improve their engine's performance. Based on my observations this product is top-notch and delivers significant gains in horsepower and torque. Using this system, my engine has never run smoother and the throttle response has improved significantly .The installation is straightforward, and i appreciate the durable construction. The only con is the slightly higher price compared to other vacuum systems on the market, but it's worth the investment for its overall performance benefits..