XRAY T4 Upper Deck 1.6MM Graphite Tuning Plate by Arrowmax AM-T4-301061  [AM-T4-301061]

T4'20 upper plate for setup tuning

The Arrowmax AM-T4-301061 1.6MM graphite upper deck is produced as a direct replacement plate for XRAY T4 touring car chassis. It links to the factory mounting points and upper suspension pickups and is intended as a tuning component to influence chassis stiffness and handling balance.

Installation involves removing the original upper deck and fitting the Arrowmax plate to the existing chassis bosses using the stock hardware. Compatible T4 variants typically require no modification. The deck preserves the standard cutouts for upper links and accessory mounts so the swap is routine for anyone used to T4 servicing.

Used as a setup tool the 1.6MM graphite plate changes torsional rigidity and redistributes flex across the chassis. Drivers can pair it with spring, damper and anti-roll bar adjustments to tune mid-corner feel and transient reaction. The item is aimed at racers and club drivers wanting to refine baseline chassis stiffness without altering primary plates.

Fit this upper deck as a swap-in tuning hop-up on XRAY T4 models to test different chassis stiffnesses while retaining the original mounting pattern.