51115A0B678 Lower Grille | BMW iX1 U11 M Sport Front Bumper Grille System

51115A0B678 Lower Grille - M Sport Front Bumper Component for BMW U11 iX1/X1

Specifically designed for BMW U11 platform vehicles equipped with M Sport packages, the 51115A0B678 Lower Grille delivers the distinctive vertical billet aesthetic demanded by performance enthusiasts. This precision-engineered component features a structural black polymer matrix with integrated aerodynamic elements that optimize airflow to cooling systems. The vertical blade design maintains BMW's signature M Sport styling while incorporating reinforcement ribs that withstand road debris impact. Created through injection molding with glass-fiber reinforced polymer blends, this grille maintains dimensional integrity across temperature extremes while resisting UV degradation. Each mounting point features stainless steel core inserts for vibration resistance and precise alignment with factory bumper contours. The satin-black finish provides OEM-level visual integration with U11 bumper assemblies.

OEM-spec integration with U11 M Sport bumpers

Vertical billet design with reinforced ribs

Precision-engineered mounting points

Engineering Specifications and Construction Details

The 51115A0B678 Lower Grille employs advanced polymer engineering formulated exclusively for automotive exterior applications. The vertical billet design incorporates aerodynamic channels that reduce drag coefficient while directing airflow to critical cooling components. Reinforced with 15% glass-fiber content in structural areas, the grille maintains rigidity during high-speed operation without compromising impact resistance. Each vertical blade features precision-radius edges that minimize wind turbulence while preventing water accumulation. The component undergoes a specialized UV-stabilization treatment that maintains deep-black coloration without fading or discoloration during prolonged sun exposure. Backside reinforcement ribs maintain optimal wall thickness uniformity across complex contours, ensuring consistent structural integrity throughout the entire bumper interface area. The integrated clip system utilizes stainless steel cores within polymer housings to provide corrosion-resistant retention strength.

Vehicle Compatibility and Applications

The 51115A0B678 Lower Grille has been validated for all BMW U11 platform vehicles equipped with factory M Sport bumper configurations:

Compatibility Assurance

Compatible with 2022-Present BMW U11 iX1 and X1 vehicles equipped with factory M Sport front bumper assemblies requiring lower grille replacement. This component matches original equipment specifications when installed according to manufacturer guidelines.