GIRODISC D1-153 Front Rotor Replacement Ring Kit for PORSCHE 911 (991.1) Carrera/C4 ymm_74 Horsepower Rating: 450-900 HP

Horsepower Rating: 450-900 HP

Optional resonator 60667 available for sound dampening

VW/Audi 505

as it enables activation or deactivation of safety systems depending on seat occupancy

Designed for racetracks and closed courses only and requiring mandatory remapping of the ECU

GIRODISC D1-153 Front Rotor Replacement Ring Kit for PORSCHE 911 (991.1) Carrera/C4 ymm_74 Horsepower Rating: 450-900 HPOur replacement rings are sold in pairs and include replacement hardware. The only parts you will reuse are your existing GiroDisc hats. Specifications: Disc Finish: Straight Slotted Disc Vane Style: Curved Vane Material: Cast Iron Disc Type: Vented Disc Diameter (mm): 350 Min Thickness (mm): 26,0 Max Thickness (mm): 28,0