Penske Shocks PI-HF12005 High Flow Shock Piston 1°/2° 55mm Linear

The Penske Racing Shocks PI-HF12005 is a high-flow linear shock piston designed for professional motorsports and high-performance racing applications. This precision-engineered piston features a 55mm outer diameter with 1 degree/2 degree dishing configuration, constructed from lightweight aluminum with a durable gray anodized finish.

High Flow Design Benefits:

• Each piston face has a dished surface to preload the valve shims flat against the piston face, while the HighFlow piston ports are larger and allow for roughly 50% more flow
• Provides a more compliant feel which typically gives more mechanical grip but less support
• The 2° compression side dishing causes the shims to become increasingly preloaded, creating a slight delay in opening during compression movement
• The dishing causes the shims to "snap" open, giving the car a "snappier" feel as opposed to a smooth roll

Technical Specifications:

• Outer Diameter: 55mm
• Compression Face: High Flow Linear 1° Dish
• Rebound Face: High Flow Linear 2° Dish
• Material: Billet Aluminum
• Finish: Gray Anodized
• Configuration: Linear/Linear
• Compatible with Penske Series 7100, 7150, 7300, 7500, 7600, 7700, 8300, and 8700 shocks

Penske Racing Shocks components are hand-built and billet-machined in the USA, ensuring precision fitment and exceptional quality. This replacement piston is ideal for racers looking to fine-tune their shock valving and damping characteristics for specific track conditions and driving preferences.