The Factory Pro O-XCP024 one-piece upper deck is a direct replacement option crafted for the X4F 2025 family, including Xray X4F'25 builds. Made from graphite, it concentrates on altering chassis stiffness rather than touching suspension geometry, suiting drivers who tune flex to refine handling traits.
As a structural element, the deck influences torsional rigidity across the chassis length. Installing a firmer upper deck reduces flex under lateral load, which can lead to steadier handling during rapid direction changes and aid repeatable setup tuning. A softer deck remains a tuning choice where bump compliance is preferred.
Installation generally swaps the original upper deck using the car's existing mounting points and fasteners. The part is supplied without extra hardware, so confirm that your chassis configuration and retained screws match Factory Pro O-XCP024 mounting holes prior to fitting.
Fit this graphite upper deck when you want a clear stiffness baseline to tune from on X4F 2025-based cars. Always double-check fit with your current chassis hardware before completing the install.
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