Product Overview GrimmSpeed Manual Boost ControllerVerified Details The design allows for 250 adjustment points that lock into place via heavy duty stainless dual-ball detent system. Vehicle Fitment PDF Install Guide 250 steps of adjustment 16 clicks per revolution Laser Etched Scale and Labels Superior Range without Sacrificing Resolution Universal Mounting Solution Precision CNC Machined More from GrimmSpeed Welcome to the most refined manual boost controller available on the market today. The GrimmSpeed MBC allows you to raise OEM boost levels in a quick and efficient manner through superior boost range and ultra-fine resolution (.25 PSI/click). Design An extra long travel spring gives you superior range, unmatched by any other manual boost controller on the market while maintaining high resolution, not just a vague guess at where to set your boost. Part number: GRM-070002 Part number: GRM-070002R