Yellow Speed Racing YSR Pro Sport Digressive Series Coilovers - 2002-2007 Subaru WRX / 2004 STI / 2002-2007 Subaru Impreza (GD) Rear Upper Mount Type:Pillowball A90 Supra Rear Suspension Calibration

A90 Supra Rear Suspension Calibration

Up to a 50% power increase over stock with supporting modifications

Yellow Speed Racing Dynamic Pro Drift Spec Coilovers - 2008-2014 Subaru WRX / 2008-2011 Subaru Impreza (GH/GE/GV/GR)

then give it a proper seal with the Tomei 1

Yellow Speed Racing YSR Pro Sport Digressive Series Coilovers - 2002-2007 Subaru WRX / 2004 STI / 2002-2007 Subaru Impreza (GD) Rear Upper Mount Type:Pillowball A90 Supra Rear Suspension CalibrationYellow Speed Racing YSR Pro Sport Digressive Series Coilovers 2002 2007 Subaru WRX 2004 STI 2002 2007 Subaru Impreza (GD) Digressive Valving for Sharper Street and Track Feel The Yellow Speed Racing Pro Sport Digressive Series uses digressive damper valving a design that provides higher resistance at low shaft speeds (cornering, braking, acceleration) while allowing more compliant movement at high shaft speeds (bumps, road irregularities). The result