The GrimmSpeed new and improved manual boost controller is renowned as the most refined manual boost controller on the market. The extra long stainless dual ball detent system make the GrimmSpeed controller one of the most fine tunable boost controllers available, allowing from +0-60psi without having to switch springs. No more swapping out soft and stiff springs for higher or lower boost levels. The new GrimmSpeed manual boost controller now features 250 incremental locking boost levels and is designed from weapons grade 6061 laser etched aluminum.
-250 way adjustable
-Heavy Duty SST Dual Ball Detent System
-Laser Etched Scale and Labels
-'Click and lock' operation for repeatable settings