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964/993 ERP Billet Uprights

SKU: 993.038.01


 These no compromise 964/993 front uprights from Eisenlohr Racing Products are more than just another billet copy of the RS uprights.  The roll center has been corrected and bump steer has been virtually eliminated. The shock mount was also lowered by 50mm, accommodating lowered vehicles and gaining back shock travel and correcting suspension geometry. Fully compatible with OE heat shielding, sensors and bearings. The caliper mounts are designed for the OEM Porsche 993 Brembo units.

The whole upright is not just optimized for suspension geometry but for strength and weight. To ensure best performance on track, the part was subject to extensive FEA testing to be significantly stronger than the OE part.  Structural ribbing has been added to increase rigidity. It has also been optimized for weight. Each upright is just 5.45 lbs. despite the added strength and denser material.

Uses the OEM wheel bearing.  Includes 6 bolt bearing retainer plates.  The OEM plates use only 4 bolts and are a known failure point for competition use.

Fitment Note: 964 Require updated 993 inner and outer tie rods and 993 ball joints. 993 requires RS outer tie rods.  RS style inner tie rods, outer tie rods, and new wheel bearings are optional and can be added above.

993 Brakes or equivalent big brake kits (for 993) are required.


  • CAD designed and simulated
  • FEA Tested for strength vs. weight optimization
  • 7075-T6 Aluminum
  • 5-Axis CNC Machined


    • Developed for lower ride height: 50mm lower than OEM (non RS)
    • Adjusted Strut Mount Location for full shock travel
    • Corrected Roll Center Geometry
    • Virtually Eliminated Bump Steer
    • Perfect Ackerman
    • Retains OE Shield Mounting
    • Reinforced Tie Rod and Control Arm mounting
    • Hard Anodized Finish
    • Includes 6 Bolt Wheel Bearing Retainer Plate