DGR Coilovers | Street Series (Subaru Impreza GJ GP)DGR Coilovers for Subaru Impreza GJ GP DGR utilises a very well respected and proven monotube damper design combined with high quality components which has gone through numerous rigorous tests and costly manufacturing processes. The design of the DGR Subaru Impreza GJ GP Coilovers has gained worldwide recognition for its unparalleled performance and it is being used as an OEM stock application in some high end performance cars. The monotube uses a