Subaru Impreza WRX STI (GRB) 2008-2014 - 500 Series Coilovers Spring Upgrade:Hyperco Springs Learn more about Unitronic Stage

Learn more about Unitronic Stage 2+ calibration here

07 Black Edition is the racing steering wheel that inspired the iconic MOMO Prototipo street car steering wheel

All Motorsport MAP and Pressure sensors are individually electronically tested before packaging and are sold "as is" and without any further warranty

Your EMtron SL Series ECU is the brain of your engine management system

All user supplied ECUs must be PRB A01-A12 and in perfect working order

Subaru Impreza WRX STI (GRB) 2008-2014 - 500 Series Coilovers Spring Upgrade:Hyperco Springs Learn more about Unitronic StageCUSTOM. MODULAR. REBUILDABLE. Fortune Auto engineers are consistently chasing improvement and the development of the Generation 8 500 series damper is no exception. The 500 Series single adjustable coilover is the entry into the Fortune Auto verse. Utilizing the highly advanced, High Flow Digressive Piston to optimize the perfect balance between performance and comfort along with the ability to upgrade and rebuild; youll never have to buy coilovers