The XRAY 301172 Aluminum Upper Deck Collar reinforces the upper deck to reduce torsional movement in the T4 2020 chassis. The added stiffness helps the car remain composed on technical sections, and the black finish blends in with the standard layout.
When traction is high, controlling chassis twist becomes critical for consistent lap times. The collar cuts down on unpredictable flex, giving drivers a more stable platform for corner entry and exit and improved predictability when changing lines.
Made to match XRAY T4 2020 mounting points, the part installs cleanly with no modifications required. Fit is precise so you can test on track quickly after fitting.
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