GrimmSpeed Stage 1 Power Package Subaru STI 2008-2014 Ralliart_2009-2017 By shortening or lengthening the

By shortening or lengthening the lever arms (2-point adjustment)

Part #: BMF48

the damper fluid is monitored through the slow bleed orifice in which pressure loss across the orifice results in opposing damping force

and lets you keep the wheels spinning all the way through a corner

NRG's thinnest possible Quick Release

GrimmSpeed Stage 1 Power Package Subaru STI 2008-2014 Ralliart_2009-2017 By shortening or lengthening theThe GrimmSpeed Stage 1 Power Package is an excellent place to start when modifying your 2008 2014 Subaru STI. The upgraded GrimmSpeed 3 Port Boost Control Solenoid offers more accurate and more responsive boost control and is a must when having your vehicle professionally tuned. The GrimmSpeed Intake adds an additional performance increase by reducing pre turbo restriction, which allows your turbo to build boost more quickly and more efficiently. It's