Beatrush Rear Suspension Member Stopper - Subaru WRX STi 2008-2014 GRB, GVB REVERSE KNOB A must have if you're

A must have if you're running more torque and hp on your WRX or STi

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or Insight much better response

Subaru Impreza GC (1993

The duracon (delrin) material does not hold heat

Beatrush Rear Suspension Member Stopper - Subaru WRX STi 2008-2014 GRB, GVB REVERSE KNOB A must have if you'reEliminates unnecessary movement by suppressing the movement of the rear members. An immediate increase in traction and suspension improvement can be seen once installed. Additionally this does not need to be serviced or replaced like OEM bushings. Note: Increases suspension vibration and noise. 2008 Subaru Impreza WRX STi 2009 Subaru Impreza WRX STi 2010 Subaru Impreza WRX STi 2011 Subaru Impreza WRX STi 2012 Subaru Impreza WRX STi 2013 Subaru Impreza