Set it and forget it with Turbosmart boost tee boost controllers! These smaller and lighter manual boost controllers offer precision power, durability, and the biggest bang for your buck. Turbosmart boost tee controllers are easy to install and are cost-effective in controlling the amount of pressure going to your wastegate via their gated boost control valve. Built from high-grade brass and aluminum, these controllers allow for easy boost adjustment from under the hood with their accurate, proven detent system. Under the hood boost, tees are ideal for many applications from mild to wild! Improve your turbo response and performance with Turbosmart boost tee boost controllers.