Whiteline Grip Series Stage 1 Suspension Kit for 2008-2014 Subaru Impreza WRX STI (GS1-SUB004)

Fits 2008-2014 Subaru Impreza WRX STI models, including Limited and Special Edition. This Whiteline Grip Series Stage 1 Kit (GS1-SUB004) is an engineered handling solution designed to reduce body roll and improve steering response while maintaining ride quality. By combining matched lowering springs with adjustable sway bars and heavy-duty links, this kit provides a comprehensive suspension upgrade that eliminates the flex and vague feel associated with original equipment components.

The system features 22mm adjustable sway bars (2-point front, 3-point rear) that allow you to fine-tune the chassis balance for specific driving conditions. These bars are paired with progressive rate springs cold-rolled in Europe for high durability and consistent performance. The included heavy-duty end links allow for on-car length adjustment to eliminate sway bar preload during installation, ensuring the suspension geometry remains optimal even at a lower ride height.

• Front Springs: 4.9kg/mm (274lb/in) rating with a 25mm drop
• Rear Springs: 3.7kg/mm (207lb/in) rating with a 25mm drop
• Front Sway Bar: 22mm 2-point adjustable with forged ends
• Rear Sway Bar: 22mm 3-point adjustable with forged ends
• End Links: Heavy-duty steel ball joint ends with up to 25mm of adjustment
• Mounts: Synthetic elastomer bushings with internal bore knurling and grease retention lips
• Protection: Powder-coated and plated metal components for superior corrosion resistance
• Included: Front and rear sway bars, lowering springs, drop links, lateral locks, and molybdenum disulphide grease