The XRAY 354255 carbon center mounting rear brace is a top deck tuning component designed to work in conjunction with aluminum center upper brace mounting plate #354290 to adjust rear chassis flex. Constructed from precision machined carbon fibre, the part aims to give a controlled drop in rear stiffness that can improve traction and provide steadier handling where extra compliance is beneficial.
Installation takes place at the chassis centreline, with the brace fitted to the existing centre upper plate. When used with the specified aluminium plate the combined stack alters the torsional behaviour of the rear section. This product suits drivers who want a measurable tuning item to relax rear chassis behaviour on lower-traction surfaces without significant weight gain.
In tuning terms, the brace modifies the interaction between chassis twist and suspension movement: a softer rear chassis lets the rear tyres better track uneven ground, aiding rear bite on exit and promoting more consistent lap times. Incorporate this change alongside shock, tyre, and anti-roll bar adjustments to suit the track surface.
Fit the XRAY 354255 when you want a targeted increase in rear compliance; pair with #354290 aluminium centre upper brace and evaluate changes incrementally on the circuit.
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