Quick view Whiteline Whiteline Ford Mustang GT S197 Grip Series Stage 1 Kit - GS1-FRD005 Compare $948.99 The ultimate entry level suspension upgrade! Performance, handling and comfort make up the Grip Series Stage 1 kit featuring Whiteline signature front and rear adjustable (where applicable) swaybars, drop links and performance lowering springs.This Part... Add to Cart Add to Cart