The Trans Dapt phenolic spacer is a must-have for any automotive enthusiast looking to increase performance in their vehicle. As my tests showed, the spacer provided a noticeable increase in horsepower and improved throttle response. The high-quality material also ensures durability and can handle high heat. The only downside is that installation can be a bit tricky, requiring some technical knowledge or assistance from a professional. Overall, a great addition to any performance car.