Perrin 08+ WRX / 08+ STi Rear Differential / Subframe Lockdown System

For the best performance on the track, AST Suspension designed the Competition 3-way adjustable dampers (5300 series). By having separate Low & High speed compression adjustments in addition to the rebound, drivers are able to fine tune their shocks to their precise needs.

Features:

• Steel Front Struts and Aluminum Rear Strut
• High End, Track Ready Suspension that is Totally Streetable
• Rebound, Low and Hi Speed Compression Adjustable "Triples" with a Remote Reservoir
• Remote Reservoirs Allow Additional Travel and Heat Dissipation
• 44.5mm Diameter Shaft Struts, Inverted
• New Low Friction Seal
• Spherical Lower "Eye" Shock Mounts
• Reservoir with Hose or Piggyback
• Spherical Upper Shock Mount Assemblies
• Synthetic Hydraulic Fluid
• Optional DLC Coated Shafts
• Optional DDP Piston (Double Digressive)