A1-157 Girodisc 2pc Front Brake Rotors for BMW E9X M3

Girodisc A1-157 BMW Front Rotors The Girodisc Front Rotor set for the BMW E9X M3 provides a precision-engineered, lightweight upgrade that enhances braking performance and thermal management without the need for any modifications. Designed as a direct OEM replacement, these two-piece rotors retain full compatibility with the factory calipers and ABS system while reducing rotating and unsprung mass for sharper handling and acceleration. Vehicle Fitment This Girodisc front rotor set fits the following BMW models: BMW M3 E90 Sedan (2008–2011) BMW M3 E92 Coupe (2008–2013) BMW M3 E93 Convertible (2008–2013) Direct bolt-on installation using the OEM calipers and hardware. No spacers, brackets, or modifications required. Performance and Design Each rotor weighs significantly less than the factory single-piece iron discs, resulting in reduced rotational inertia and improved suspension response. The 48 curved directional vanes inside the rotor act as a centrifugal pump, pulling air through