Features: 1.Using precise control technology, with more than 250 set points, and can be locked in place by a heavy?duty stainless steel double?ball brake system. 2.Ultra?long stroke springs can provide you with a larger stroke range while maintaining high resolution, not just a fuzzy surmise about the thrust position. 3.CNC processing and anodized aluminum material, rust?proof, corrosion?resistant and has a long service life. 4.Don't think that engine life is trial and error. Instead, use the tuning ratio along the length of the controller to accurately determine the boost setting. 5.Simple installation, no need of complicated operations, and the compact size for easy placement in engine bay. Specification: Item Type: Turbo Boost Manual Controller_x000D_ Material: Metal_x000D_ Adjustable Range: 0-60PSI PackageList: 1 x Turbo Boost Controller 1 x Hose 3 x Cable Tie 2 x Connecting Pipe 3 x Screw 1 x Nut 1 x Mounting Clip Note: 1.(IMPORTANT) No Instructions Included. Professional Installation Is Highly Recommended!_x000D_ 2. Please check the size measurement chart carefully before making payment._x000D_ 3. Please allow 0.5?1 inch difference due to manual measurement.(1 inch=2.54cm)_x000D_ 4. The color of the actual items may slightly different from the listing images due to diferent computer screen, thanks for your understanding.